With the world's largest grassroot oil refinery in Jamnagar and OPaL petrochemical complex at Dahej in Bharuch district, Gujarat is now recognised as the 'petro capital' of India, officials said.

Reliance Industries Ltd's (RIL) Jamnagar refinery is the largest and most complex single-site refinery in the world with 1.4 million barrels per day (MMBPD) crude processing capacity, they said.

As per the official website of RIL, the Jamnagar refinery complex houses some of the world's largest units, such as the fluidised catalytic cracker, coker, alkylation, paraxylene, polypropylene, refinery off-gas cracker and petcoke gasification plants.