Baba Bir Singh ji, born in the house of Sardar Sewa Singh ji in the village Gagobuye, received Santhya (lessons of correct pronunciation) of Guru Granth Sahib ji at an early age, read other holy books of Vedanta and became a scholar of high calibre.
He inherited military life. After his father’s martyrdom in the battle of Multan, he joined the cavalry of Khalsa army. He submitted his resignation after doing service for a few years. Thereafter he came to do services under the patronage of Baba Bhag Singh ji Kuri Valey.
Seeing his many years of untiring Sewa (service), Baba ji sent him to Baba Sahib Singh ji Bedi of Una Sahib, where he continued to serve diligently.
Later, following Baba ji’s order, he came to Naurangabad in Majha and started Langar (Free Community Kitchen). Maharaja Ranjit Singh also gave credence to his langar service, with whom an army of 14,000 came to see Baba ji without prior notice, was fed after preparing food instantaneously.
Maharaja Sahib offered jageer (estate) for his langar but Baba ji turned down his offer. Baba Khuda Singh ji, Baba Maharaj Singh ji, Baba Patasa Singh ji, Baba Bikram Singh ji Bedi, Baba Mehtab Singh ji, Baba Tek Singh ji and Chotey Baba Bir Singh ji, etc were the precious pearls of the garland of great Gursikh saints who descended from him.
After the death of Maharaja Ranjit Singh, Rise of Dogras in Lahore hurt him badly.
During the bloodshed at Lahore Darbar at that time, few Sikh Sardars (chiefs) which included S. Attar Singh Sandhawalia, Kanwar Kashmira Singh, Kanwar Pishora Singh, Jawahar Singh, etc sought the shelter in dera of Baba ji.
When Hira Singh Dogra came to know, he seized the opportunity and positioned the canons to attack Baba ji’s Dera (place).
At that time, Baba ji also had many armed Sikhs and thousands of soldiers who came with Sikh chiefs but he did not allow Sikh brothers to fight amongst themselves.
During that attack, his body was perforated by artillery shells and he was martyred along with thousands of his disciples.