Adani group founder and chairman Gautam Adani and his nephew Sagar have been summoned to explain their stand on the US Securities and Exchange Commission (SEC) allegation of paying USD 265 million (Rs 2,200 crore) in bribes to secure lucrative solar power contracts. Summons have been sent to Adani's Shantivan Farm residence in Ahmedabad and his nephew Sagar's Bodakdev residence in the same city for a reply to SEC within 21 days. "Within 21 days after service of this summons on you (not counting the day you received it)...you must serve on the plaintiff (SEC) an answer to the attached complaint or a motion under Rule 12 of the Federal Rules of Civil Procedure," said a November 21 notice sent through the New York Eastern District Court. "If you fail to respond, judgment by default will be entered against you for the relief demanded in the complaint. You also must file your answer or motion with the court," it added. Gautam Adani, 62, and seven other defendants, including his nephew .