BJP leader Kirit Somaiya and his son Neil Somaiya have been summoned on Saturday to join the probe in a case lodged in connection with the collection of funds to turn the aircraft carrier Vikrant into a museum, a police official said.

The father-son duo has been asked to remain present before the investigating officer at Trombay police station, he said. "Police had gone to issue summons to them at their home in Mulund East, but it was locked," he added.