when can a president call a special session of congress
Special session This power exists for urgent or extraordinary situations that require congressional action when Congress is adjourned. Presidents have exercised this power 46 times to recall only the Senate and 28 times to recall both Chambers of Congress, most recently by Harry Truman in 1948.[2]
Joint Session of Indian Parliament If the above conditions are satisfied, the President of India may summon joint sitting of both the houses of parliament.