"We have conducted simultaneous searches at many locations of the group in Mumbai, Bengaluru, Chennai and Hyderabad," an Income Tax source said in Mumbai.
Searches were also conducted at the residential premises of top company officials, the source said.
The source said some documents of accounts and transactions have been seized in the operation that was underway several hours after it started.
When contacted, a spokesperson of the Mumbai-based
What Mumbai developers are doing to pep up realty markets
Why are real estate prices still high despite weak demand?
Coal scam: File chargesheets by March 28, SC tells CBI
Rail scam: Court puts on trial Bansal's nephew, nine others
'Wave now seems a mild word, it is more like a BJP tsunami'