Reliance Industries and HPCL-Mittal Energy (HMEL) are reportedly seeking environment ministry approval for increasing capacity of their plants in India.

Reliance, which owns two plants at Jamnagar in western India, has installed capacity to process about 1.2 million barrels per day (bpd) of oil, Reuters reported.

Reliance Industries chairman and managing director Mukesh Ambani is planning to add a fifth crude train of 400,000bpd.

Ambani’s plans also include addition of some polymer units and changing the fuel for 450MW of an already approved 2,100MW power plant from gas to coal.

The timings and the cost of expansion are based on the government approvals, which may take months to years.

"This could be their strategy to take all approvals in advance so at a future date they need not run after the bureaucracy for the approval," an industry source said.