Which of the following is NOT a Maharatna company?

The correct answer is option 2: Hindustan Aeronautics Limited

The Central Public Sector Enterprises are designated with different status. A few examples of public enterprises with their status are as follows:

(i) Maharatnas – (a) Indian Oil Corporation Limited, and (b) Steel Authority of India Limited,

(ii) Navratnas – (a) Hindustan Aeronautics Limited, (b) Mahanagar Telephone Nigam Limited; and

(iii) Miniratnas – (a) Bharat Sanchar Nigam Limited; (b) Airport Authority of India and (c) Indian Railway Catering and Tourism Corporation Limited.