On 23 July 2021 he was found dead in his rented apartment, neighbors discovered a foul smell and alerted the police. Police did postpartum, but to this day, his cause of his death is still a mystery.
Babri Masjid was built in 1528 in Ayodhya by Mughal commander Mir Baqi during the rule of Emperor Babar but there's no record of it being ordered by Babar or in place of a mandir
Now back to Balbir Singh, he was at the forefront of the mob that destroyed Babri Masjid in 1992, but later he repented his act and became a Muslim in 1993, he pledged to build 100 mosques all over India. By 2021 he had built 91 mosques and 59 were under construction.