Question

Total how many companies attained navaratna status in our country

Answer 1

I think all of the country

Answer 2

8 companies
They are :
1. Bharat Heavy Electricals Limited (BHEL)

2. Coal India Limited

3. Gas authority of India limited (GAIL)

4. Indian Oil Corporation Limited  (IOCL)

5. National Thermal Power Corporation Limited (NTPC Limited)

6. Oil & Natural Gas Corporation Limited (ONGC)

7. Steel Authority of India Limited (SAIL)

8. Bharat Petroleum Corporation Limited