As a prisoner, Sahgal was invited to fight for Japan's proxy - the Indian National Army. He joined the
Indian National Army (INA) of
Subhas Chandra Bose and took up arms against his former colleagues in the British Indian Army. He served as the commander of the 2nd Division, led the 2nd Infantry Regiment
at Popa against
Messervy's 17th Indian Division during the latter half of the
Burma Campaign before surrendering to the British forces. During his stint with the INA, Sahgal came into contact with
Lakshmi Swaminadhan, whom he later married. After the INA disbanded, officers and soldiers of the INA were arrested. Major General Shah Nawaz Khan, Brigadier Habib ur Rehman of Panjeri (Bhimber) Colonel Prem Kumar, and Colonel Gurbaksh Singh Dhillon were tried in court. Upon the directive of Allama Mashriqi, the
Khaksars made great efforts for their release, and their efforts did not go in vain. During a visit to the Khaksar Tehrik headquarters, Major General Shah Nawaz thanked Allama Mashriqi for obtaining their release. The general also thanked the Khaksars and stated, "We are highly grateful to the Khaksar Tehrik for their efforts in obtaining our release." ("Al-Islah" dated 11 January 1946) After surrendering, Sahgal spent time in an Indian prison before being put on trial for
treason along with three fellow officers. The trial was held in November 1946, by which time India was on the verge of gaining her independence. The stage was set for suitable atmospherics when the
Red Fort in
Delhi was named the venue for the trial, a choice without precedent in the annals of Indian law. Jawaharlal Nehru recognized the potential of the event and donned his lawyer's robes, after an interval of several decades, to appear as counsel for the defense. The trial duly became famous all over India in 1946 and are known in history books as the
Indian National Army trials. The charge of treason was not upheld, but Sahgal was dismissed from the army. ==Personal life==