Regarding India's coal and steel sector, take into consideration the following claims:

1) In the world, India ranks second in terms of crude steel production.

2) All grades of Indian steel manufacturing facilities registered under the Companies Act of 2013 are eligible for the Production-linked Incentive (PLI) scheme. 

3) Under Indira Gandhi, the Indian government nationalised the coal industry.

4) The bidding process is used to allocate coal mines.

Correct statement is/are: