These two are now among India's most valuable business houses, ahead of older and more diversified groups, such as the Bajaj, OP Jindal, Anil Ambani, UB, Godrej and Hinduja.
Sun Pharmaceutical Industries will take a call on whether to shut Ranbaxy's troubled factories or make changes in the top management of the latter only after its $4-billion acquisition deal is complete.
The merger has fortified Sun Pharma's position.
Sun Pharma's offer was tempting because Ranbaxy was too busy fighting fires in the US to concentrate on operations.
'The focus for value creation will be on all business segments.'
The proposed acquisition is expected to close by the end of 2014, subject to approvals from Indian Courts and the anti-trust body in India and the US
Not much is heard or read about Sun Pharma's media-shy owner.
Sun Pharma would have to do a lot of work to get USFDA to revoke the ban on Ranbaxy facilities but it has not put any time-frame for this, company ChairmanIsrael Makov said.