Supreme Court has asked the managing director of real estate firm Unitech Ltd to appear before it to explain the delay in handing over flats to home buyers. A bench headed by Justice Dipak Misra yesterday also asked the directors of the firm to appear before the court and posted the matter for further hearing on May 5. <br/><br/>The court had on February 20 asked the builder to deposit 14 per cent interest on 16.55 crore rupees invested by 39 home buyers, with the apex court registry within eight weeks. The 39 home buyers, who have moved the court, had booked flats in Unitech's housing project in Gurugram. They had sought a refund of their principal amount, with interest, after the developer, which had promised to give the possession by 2012, delayed it.