Baba Maharaj Singh was born in Uchhi Rabbon, near Kupp Rohira, where Vaddha Ghalughara took place. His childhood name was Hihal Singh.
Inspired by Sant Samund Singh ji, he went to Baba Bir Singh ji Naurangabad, took Khande da Amrit (got baptized) and geared up for ceaseless service of Guru Ka Langar.
During the services, he used to humbly address everyone, Take Parshada Maharaj Ji! Take Daal Maharaj ji, etc. (Take food, your majesty!) Due to such courteous conduct, he became popular by the name of ‘Maharaj Singh’ in Sangat.
Martyrdom of Baba Bir Singh ji, which took place in front of his eyes, acutely traumatized him. Although Baba Khuda Singh ji, a great ascetic who used to devotionally engross in divine love, gave him the robe of honour and responsibility of the Dera on the occasion of Baba Ji’s Dusshera (Bhog), but there was totally something else going on in his mind.
He also was convinced of the fact that this whole episode and Dogra-hooliganism was actually the conspiracy of the cunning British, and it was at its’ (British Officers’) instigation that bloodshed of Lahore Darbar and Martyrdom of Baba Bir Singh ji were carried out. Therefore, he handed over the responsibility of dera of Naurangabad to Chotey Baba Bir Singh ji, and he himself pledged to fight against the British rule.
He started mobilizing his followers and well-wishers of Khalsa Empire against the foreign government. He fought many wars against the British rule. Especially in the battle of Ramnagar and Chelianwali, he made British realise the strength of his political acumen.
The British Government realised that unless Baba Maharaj Singh is apprehended, they can’t get the hold of the land of Punjab everlastingly.
On the other hand, Baba ji intensified the struggle against the foreign rule and planned a revolt in the cantonments. Meanwhile, he was arrested in one thicket outside Shamchaurasi village, near Hoshiarpur.
He was first taken to Jallandhar. British officers saw the jail staff and soldiers saluting Baba ji. Observing this the British Government, fearing a revolt, decided to send him away from Punjab with recommendation of Henry Venstart, the then DC of Jallandhar.
He was detained at Allahabad and William Fort, Calcutta for a few months. At last, he was sent to Singapore, far away from India, so that there was no scope for his contact with the opponents of the British. He got martyred on 6th July, 1856 in the jail of Singapore. A Shaheedi Jormela (Martyrdom day) is organised every year at Silat Road Gurdwara Sahib, Singapore which is established in his memory.