To bring down promoter stake to comply with minimum public shareholding rules.
Authorities are checking deals involving more than three dozen companies.
Wants to jointly develop the office space at Bandra-Kulra Complex.
Lafarge is in a drive to shed non-core assets to cut its debt to below 10 billion euros from 12.2 billion euros.
Investors including units of Morgan Stanley and Citigroup have agreed to buy 28.3 million shares of Bharti Infratel at Rs 230 apiece.