Guru Angad Dev Sahib Ji was the Second of the Ten Sikh Guru Ji'. He was born in the village of Sarae Naga in Muktsar District in Punjab, on 31 March 1504 and given the Name Lehna shortly after His Birth as was the custom of His Hindu parents. He was the Son of a Small Successful Trader named Pheru Mal. His Mother' Name was Mata Ramo Ji (also known as Mata Sabhirai Ji, Mansa Devi Ji and Daya kaur Ji). Baba Narayan Das Ji Trehan was His Grandfather, whose ancestral house was at Matte-di-Sarai near Mukatsar. In 1538, Guru Nanak Dev chose Lehna, his disciple, as a successor to the Guruship rather than one of his sons. Bhai Lehna was given the name Angad and designated Guru Angad, becoming the second guru of the Sikhs. He continued the work started by the first Sikh Guru, Guru Nanak Sahib. He married Mata Khivi in January 1520 and had two sons (Dasu and Datu) and two daughters (Amro and Anokhi). The whole family of his father had left their ancestral village in fear of the invasion of Babar's armies. After this the family settled at Khadur Sahib, a village by the River Beas, near what is now Tarn Taran a small town about 25 km from the city of Amritsar, the Sikh holy city.
Guru Angad Ji is credited with introducing a new alphabet known as Gurmukhi script that he made in Khadoor sahib , modifying the old Punjabi script's characters. There is evidence, however, that this was not the case: one hymn written in acrostic form by Guru Nanak gives proof that the alphabet already existed. Soon, this script became very popular and started to be used by the people in general. He took great interest in the education of children by opening many schools for their instruction and thus increased the number of literate people. For the youth he started the tradition of Mall Akhara, where physical as well as spiritual exercises were held. He collected the facts about Guru Nanak Ji's life from Bhai Bala and wrote the first biography of Guru Nanak Ji. He also wrote 63 Saloks (stanzas), which are included in the Guru Granth Sahib. He popularised and expanded the institution of Guru ka Langar (the Guru's communal kitchen) that had been started by Guru Nanak Ji.
Guru Angad Ji travelled widely and visited all important religious places and centres established by Guru Nanak Ji for the preaching of Sikhi. He also established hundreds of new centres of Sikhi and thus strengthened its base. The period of his Guruship was the most crucial one. The Sikh community had moved from having a founder to a succession of Gurus and the infrastructure of Sikh society was strengthened and crystallised – from being an infant, Sikhi had moved to being a young child, ready to face the dangers that were around. During this phase, Sikhi established its own separate religious identity.
Guru Angad Ji, following the example set by Guru Nanak Ji, nominated Sri Amar Das Ji as his successor (The Third Nanak) before his death. He presented all the holy scripts, including those he received from Guru Nanak Ji, to Guru Amar Das Ji. He died on 29 March 1552 at the age of forty-eight. It is said that he started to build a new town, at Goindwal near Khadur Sahib and Guru Amar Das ji was appointed to supervise its construction. It is also said that the deposed Mughal Emperor Humayun (Babar's son), while being pursued by Sher Shah Suri, came to obtain the blessings of Guru Angad Ji in regaining the throne of Delhi.