The company is also scouting land for another five malls in the metros and state capitals.
"We have nine malls under construction at present and we have bought land for another four malls. The total leasable area in these 13 malls will be 4 million sq ft," Unitech Head (Retail) Munish Baldev told PTI.
The nine malls that are under construction would be operational by 2013-end, he said, adding that the construction of the remaining four malls would start in third quarter of 2012.
Asked about investment, Baldev said: "The total project cost to develop 13 malls, comprising four million sq ft of area, will be between Rs 3,500 crore and Rs 4,000
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