According to media reports, Kashyap was born on March 9, 1991 in West Champaran district of Bihar. Manish Kashyap's real name is Tripurari Kumar Tiwari and he calls himself 'Son of Bihar'. He runs a YouTube channel called Sach Tak News. The news channel has more than 6.49 million subscribers. Even before surrender, two videos were uploaded from Sach Tak news channel. In 2020, Kashyap also contested as an independent from the Chanpatia assembly seat in Bihar.