Treasurer Anandeshwar Pandey also took charge of his office.
Meanwhile, former secretary general and honorary member of the International Olympic Committee from India Randhir Singh has been made the IOA life president.
"The General House yesterday approved Randhir Singh as the life president if the IOA in recognition of his contribution to the organisation and to Indian sports," Mehta told PTI.
The elective Annual General Meeting yesterday also approved Goa as the venue for Asian Beach Games in 2020.