India News: Mohd Zakariya, a close aide of top LeT bomb expert Abdul Karim Tunda, was remanded to 10- day police custody by a Delhi court after the investigators said he had helped in illegal infiltration of Pakistani nationals into India through Bangladesh.br Zakariya, who was lodged in Presidency jail in Kolkata, was produced before Chief Metropolitan Magistrate Amit Bansal in pursuance to the production warrants issued against him earlier.