Guru Arjan Dev Ji or Guru Arjun Dev Ji (Punjabi: ਗੁਰੂ ਅਰਜੁਨ ਦੇਵ) (born in Amritsar, Punjab, India on 15 April 1563 – 30 May 1606 Lahore, Punjab, Pakistan) was the fifth of the Ten Gurus of Sikhism and became a Guru on 1 September 1581 following in the footsteps of Guru Ram Das. He was born at Goindval, and was the youngest of the sons of Guru Ram Das and Bibi Bhani, the daughter of Guru Amar Das^[1]. Before his death, he nominated his son Har Gobind as the next Guru of the Sikhs.
Guru Arjan was head of Sikhism for a quarter of a century and accomplished a lot during his regime. He completed the construction of Amritsar and founded other cities such as Taran Taran and Kartarpur. He constructed a Baoli at Lahore. The most important work of Arjan Dev was the compilation of Adi Granth. He collected all the work of the first four Gurus and dictated it in the form of verses in 1604. It is, perhaps, the only book of a scriptural nature which still exists in the form first published (a hand-written manuscript) by the Guru. It and the Guru Granth Sahib which includes the writing of the later Gurus have managed to avoid the embellishments, additions and alterations that have plagued the original writing of other more ancient religious texts.^[2]
Guru Arjan organised the Masand system, a group of representatives who taught and spread the teachings of the Gurus and also collected the Dasvand, one-tenth of a Sikh's income (in money, goods or service) that Sikhs paid to support the building of Gurdwaras, the all important Guru ka Langars (free communal kitchens) originally intended to share with sense of love, respect and equality, still an important element today in any Gurdwara. The Langars were open to any visitors and were designed from the start to stress the idea of equality and a casteless society. The land that Amritsar is built upon is believed to be a jagir (estates gifted to individuals under the Mughal system which included one or more villages and often a portion of the crops produced on the land) given as a gift by the Emperor Akbar, who was impressed by the practice, after sharing a meal in the Guru's communal kitchen, seated on the floor among commoners.

Life

Guru Arjan Dev ji clearly understood the wide import of the teachings of Guru Nanak Dev ji and perceived how applicable they were to every state of life and to every condition of society.^[3] He made Amritsar the proper seat of his followers and a centre which would attract the worldly longings for a material bond of union. The city became populous and a great place of pilgrimage of the Sikh people.
Composing the Adi Granth, he gave to his followers a fixed rule of religious and moral conduct. His starting of collection of offerings by way of Masand system, in a systematic way, accustomed them to a regular government. He traded in horses, though not extensively, and encouraged his followers to follow his example, to be as zealous in trade as they were in their faith^[3]. Guru Arjan Dev ji became famous among his pious devotees and his biographers dwell on the number of Saints and Holy men who were edified by his instructions^[3]. He was equally headed by men in high positions. During his time, the teaching and philosophy of Nanak took a firm hold on the minds of his followers.
The economic well-being of the country is closely linked with the monsoon. With a view to alleviating the sufferings of the peasents, Guru Arjan Dev ji helped the villagers in digging six-channel Persian wheel (Chhehrta) wells, which irrigated their fields. Chheharta is a living monument of his efforts in this direction. Guru Arjan was caring and loving, he was also willing to give to the poor.

Compositions

Beside compiling the works of the previous Gurus and other works by both Hindu and Muslim Sants, religious reformers in their own right, Guru Arjan composed many hymns of his own which he included in the Adi Granth as well. He appointed Baba Budha Ji, who was a companion of Guru Nanak, and an associate of each of the subsequent Guru as the chief priest of the Golden Temple. He placed the Adi Granth on the Gaddi (throne) reserved for him, preferring to sit among his disciples.
Translated below is the Sukhmani, one the most recited banis (sacred hymns) revered by the by Sikhs. It was composed by Guru Arjan.

Meditate, meditate, meditate peace is obtained, Worry and anguish is expelled from the body.

Remembering God, you’re not reborn. Remembering God, the fear of death is dispelled.

Remembering God, death is eliminated. Remembering God, your enemies are repelled.

Remembering God, no obstacles are met. Remembering God, night and day you’re fully awake.

Remembering God, fear cannot touch you. Remembering God, you don’t suffer with sorrow.

Remembrance of God, in the Company of Saints. All treasures, O Nanak, are by Lord’s Blessing. ||2||

Guru Granth Sahib page 262)

Martyrdom of Shri Guru Arjan Dev Ji

Relations between Akbar and Guru Arjan Dev ji were cordial but things changed after the accession of Jahangir. Ultimately the Guru was tortured in 1606.^[4] Sikhs believe that, having obtained leave to bathe in the Ravi river, he vanished, to the fear and wonder of those guarding him.^[5]
Many reasons have been given for this tragedy. It is stated that Jahangir was annoyed because Guru Arjan Dev ji gave his blessings to his rebel son, Prince Khusrau Mirza. Jahangir also did not like the growing popularity of Sikhism and took strong objection to conversion of Muslims to Sikhism^[6].
There are also some Mughal accounts which state that Guru Arjan Dev ji blessed the rebel son of emperor Jahangir which prompted the emperor to take action against him.^[7] But the memoirs of Jahangir make it clear that he in fact was looking for an excuse to, in his own words to bring him into the assembly of the people of Islam.
It is also stated in some sources that one of the courtiers of Jahangir who had first laughed at the suggested marriage between his daughter and the Gurus son, which was later rebuffed, could not put up with the insult and poisoned the ears of the Emperor. Consequently Jahangir imposed a fine of Rupees two Lac (two hundred thousand) on Guru Arjan Dev ji and also ordered him to remove certain passages from the Adi Granth, which were objectionable to Muslims. On the Guru's refusal to do so, he was tortured^[8].
This is what Emperor Jahangir wrote in his diary called the Tuzk-e-Jahangiri, which translates to "Memoirs of Jahangir"

“	In Goindwal, which is on the river Biyãh (Beas), there was a Hindu named Arjan, in the garments of sainthood and sanctity, so much so that he had captured many of the simple-hearted of the Hindus, and even of the ignorant and foolish followers of Islam, by his ways and manners, and they had loudly sounded the drum of his holiness. They called him Guru, and from all sides stupid people crowded to worship and manifest complete faith in him. For three or four generations (of spiritual successors) they had kept this shop warm. Many times it occurred to me to put a stop to this vain affair or to bring him into the assembly of the people of Islam. At last when Khusrau passed along this road this insignificant fellow proposed to wait upon him. Khusrau happened to halt at the place where he was, and he came out and did homage to him. He behaved to Khusrau in certain special ways, and made on his forehead a finger-mark in saffron, which the Indians (Hinduwän) call qashqa, (Tilak) and is considered propitious. When this came to my ears and I clearly understood his folly, I ordered them to produce him and handed over his houses, dwelling-places, and children to Murtaza Khan, and having confiscated his property commanded that he should be put to death."	„
—Jahangir, Tuzuk-i-Jahangiri

The manner in which Guru Arjan Dev ji was martyred "convinced the sikhs that they must arm themselves and fight, if they wanted to live"^[9]. It proved a turning point in the history of Sikhism.

Guru Arjun's multifarious activities, apart from making a very major contribution to the organisation of the mission, demonstrate, as laid down by Guru Nanak, that no field of life, whether temporal, social or political, is excluded for the operation of a mystic. Slowly but surely the movement came out with a distinct identity of its own and with clear-cut religious- and sociopolitical facets.
This system of voluntary offerings for the common cause and the sharing of one's earnings was made regular. Every Sikh was supposed to contribute 10% of his income to the common fund maintained by the Guru. The representatives of the Guru collected contributions from their respective areas and sent them to the common treasury.
The construction of the temple at Amritsar was started by the Guru and its foundation stone was laid by the reputed Muslim Sufi Saint, Mian Mir. He built another tank and temple at Taran Taran. These temples had doors on all sides, indicating that these were open to all castes and communities.
The Guru had a well-organised central establishment which included the maintenance of a contingent of horses and elephants. He encouraged his followers to trade in horses from Central Asia. For his personal maintenance, the Guru also took up the trade. As such, the Sikhs became good horsemen and formed later the nucleus of military power. All these features were important developments because they were clear preparation for the military organisation that was to follow from the time of the Sixth Guru. It was in the lifetime of Guru Arjun that his son, Hargobind, started learning to wield the sword and hunting.
In 1598, the Guru interceded on behalf of the local peasantry with Emperor Akbar to get the excessive levy of land revenue reduced. These activities of the Guru gave him a new status. It was at this time that the Guru came to be called by the Sikhs as Sacha Patshah (True Emperor). The Guru had come to guide, govern and influence the lives of the Sikhs both in the temporal and the spiritual fields. It was a significant development The organization of the community, according to Gupta, became a state within a state.
An important step in the separate consolidation of the religion was the compilation of the Adi Granth as the sole and authentic scripture of the Sikhs. It has a significant feature. Besides the hymns of the five Gurus, it contains the hymns of Hindu and Muslim saints. The Adi Granth was formally installed at the Amritsar temple on the annual gathering of the Sikhs. From the very start it was recognized as the Sikh scripture. Emperor Akbar made an offering of 51 gold coins to the Adi Granth. Its installation at the only Sikh temple constructed then by the Guru and the appointment of the most venerated Sikh as its Granthi (minister) show that it was meant to be the exclusive scripture of the Sikhs and the embodiment of the Gurus system and thought In this way conjectures about links with the other systems or scriptures were set at rest for ever. This is an important step, especially when we find that in Guru Granth Sahib no status or sanctity has been given to any gods, goddesses or avatars.
This compilation is a landmark in the history of Sikhism. It is a clear testimony of the fact that the Guru took this vital step to emphasise that their message and mission were prophetic. This fact comes out in all its glaring singularity when we see that, in thc entire religious history of man, no other prophet felt it essential to authenticate his message so as to secure its purity and exclude the possibility of interpolation and misinterpretation. In fact, in most cases the utterances of the prophets were compiled by their devotees long after their ministry. This authentication of the scripture by the Guru himself once and for all ensured its separate identity and purity. In the case of other prophets, their opponents can say that the prophets themselves never meant to declare any new truths, but their overzealous followers made it into a separate system not intended by the prophets. Nothing of that kind can be asserted about the Gurus and Guru Granth Sahib.
It is something very extraordinary that, in line with Guru Nanak's hymn that 'with the help of other God-conscious beings he would help every one to be a God-centered person', the Guru included in the Adi Granth hymns of twentytwo Muslim and Hindu saints. It is a singular example of the Guru's sense of personal anonymity. He truly felt that in accomplishing this task he was working only as an agent of God's mission. We also find that contemporary saints like Mian Mir and Pir Budhu Shah, irrespective of religion and race, remained closely associated with the mission of the Gurus.
Owing to the growing religious and political influence of the Gurus, the Sikhs had got a clear consciousness of their religious and sociopolitical identity. Consequently, the position of the Gurus had naturally given rise to hostility, both in the religious and political quarters. Saikh Ahmad, the head of the Naqashbandt order at Sirhind and a leader of the revivalist movement of Islam in India, got upset at the influence of the Guru among men of both the communities. He had access to the court of Jahangir. But, probably the chief reason that upset the Emperor was that the Guru had blessed Khusro and helped him monetarily while the latter had rebelled against Jahangir. The local administration was naturally aware of the growing Sociopolitical strength and influence of the Guru. Chat this incident rankled in the mind of emperor Jahangir, is evident from his own statement recorded in his autobiography. He wrote that he had ordered the execution by torture of Guru Arjun unless he embraced Islam, because the Guru had raised aloft the standard of holiness and many Hindus and Muslims had foolishly become his followers. Prithi Mal and his son Meherban called themselves real gurus and Meherban glorified his father Prithia and discredited Guru Nanak's hymns. They were both plotting against Guru Arjan. Others who were against Guru were Sulahi Khan of Batala, Chandu Shah Khatri of Lahore, Sheikh Ahmad faruqi Sarhindi, Emperor Jahangir who was unlike his father Akbar and pretty much intolerant of other faiths. Prince Khusrau who was also son of Akbar and was contesting for throne was captured by Jahangir's men. This prince Khusrau was the son of Jodha Bai, daughter of Udai Singh of Jodhpur, since he was born to a Hindu mother, was disliked by the fanatics who wanted Prince Salim who was a 100% Sunni Muslim (as oppose to the popular Hindi movie Mughal-e-Azam, where Jahangir was shown as son of Hindu mother). Prince escaped and went to Guru Arjan. Guru Arjan was moved at the 13 years old Prince and gave him help with money and shelter. Salim succeded with the title of Jahangir. Jahangir hated all those who were in Akbar's good books. He summoned Guru to Lahore, Sikhs of lahore pleaded with Jahangir to let them collect the fine and pay to him to release Guru, but Jahangir refused. Jahangir appointed Murtaza Khan to confisicate the property of Guru and hand it over to state., apart from that a fine of 2 lakhs was also collected from the Sikhs. Guru was imprisoned at Lahore fort. He was chained to a post in an open place exposed to the sun from morning to evening in the months of May thru June. Below his feet a heap of sand was put which burnt like a furnace. Boiling water was poured on his naked body at intervals. His body was covered with blisters all over. In this agony Guru used to utter.

 Tera Kiya Metha lage, naam padarath Nanak mange (whatever you 
ordain appears sweet.  I supplicate for the gift of name)

VErA BANA mITA lAgE, nAm pdArW nAnc mA:gE The Guru was ordercd to be executed. In addition a fine of Rupees two lakhs was imposed on him. Some historians say that, as a measure of clemency at the intervention of Mian Mir, this fine was imposed in lieu of the sentence of death. The Sikhs offered to pay the fine themselves but the Guru forbade them to do so. He replied to the Emperor, "Whatever money I have is for the poor, the friendless and the stranger. If thou ask for money thou mayest take what I have; but if thou ask for it by way of fine, I shall not give thee even a Kaurz (penny)." The Guru accepted death by torture and suffered the first great martyrdom. His sacrifice further steeled the faith of the community in the mission of the Gurus. Gupta, who considers the views of all other historians as relevant material, concludes that it was principally a political execution.
A ruling administration never takes notice of a religious institution, unless it has a political complexion and potential. The Mughal emperors never bothered about any saint of the Bhakti school. The Sikh movement was growing into a clear socio-political body, fired with a religious and moral zeal. It constituted a disciplined people who were being guided and led towards their ideals by a prophetic mystic. It was this socio-political growth which no ruler or administration could fail to take note of as a potential danger and challenge to its existence and rule. It is evident that the Sikh growth was of such dimensions that it attracted the attention of the administration and also of the Emperor. In addition it is a political fact that the Guru, as recoded by Beni Prasad (the historian on Jahangir), had given a very substantial aid of Rs. 5,000/- to Khusro, leading a rebel army and claimant to the throne. Further, this organization was of such size and importance that the Emperor not only took the extreme step of the execution of Guru Arjun, so as to stop altogether this unwanted growth (as recorded by the Emperor), but also found the movement and the episode as significant enough for mention in his autobiography Jahangir was undoubtedly right that the organisation and the movement posed a political threat to the Empire. But he was mistaken in his belief that by the execution of the Guru he had nipped this growth in the bud. In this background and the context of future developments, it would surely be naive for anyone to say either that Jahangir, by this execution of Guru Arjun, converted a simple, peaceful and innocuous movement into a military organisation, or that the reaction of the Sixth Guru to his father s execution was overzealous, especially when we know that by the very nature of the Gurus' thesis, sociopolitical developments and activities were an integral part of their spiritual life. The Fifth and the Sixth Gurus had done nothing beyond the extension and development of the foundations laid and the organisation built by Guru Nanak.
Gupta calls Guru Arjun an original thinker, an illustrious poet, a practical philosopher, a great organiser, an eminent statesman and the first martyr of the faith. He completely changed the external aspect of Sikhism."