Chopra was chosen for USD 58,185 in the first round of the seven-round draft in which all eight franchises of the IPL-style tournament took part.
"Pleased to have been by @sachin_rt's team #KeralaBlasters in @IndSuperLeague Excited to be working with David James @jamosfoundation," tweeted the 30-year-old England-born Chopra who has plied his trade for various clubs in his home country.
The striker, a product of Newcastle United's youth system, is currently a free agent after being released by Blackpool.
"Chopra, with his experience of playing in English football, was our first choice as a pick in the draft. He is very excited to be part of the team co-owned by Sachin Tendulkar. He wants to improve Indian football and wants to set up academies," James said.
Chopra was not the costliest player picked up in the first few rounds of the draft. That distinction went to French central defender Bernard Mendy who commanded USD 80,000 and was drafted in by the newly inducted Chennai franchise.