In a record-breaking deal for a home in a residential building, an 18,000 sqft triplex in an under-construction tower at Walkeshwar in south Mumbai has been sold for Rs 252 crore. Real estate market sources say the transaction, between industrialist Niraj Bajaj and Macrotech Developers (Lodha Group), is the most expensive in India to date. Last month, a 30,000 sqft penthouse in a Worli luxury tower was sold to industrialist B K Goenka, chairman of Welspun Group, for Rs 240 crore. It was touted as the biggest apartment deal in the country, but it has taken only a month for the Bajaj-Lodha transaction to surpass it.