ATKMB looked the likelier of the two teams to take the lead in the opening exchanges, with the Mariners needing two goals at least to make a comeback.
The two teams will go up against each other again on Wednesday for the second leg
It was all Hyderabad after the first goal as they dictated the game and kept pressing the NorthEast United backline.
Alessandro Florenzi ran more than half the length of the field to score and cap a 2-0 win for AS Roma over Genoa which took them back into second place in Serie A on Sunday.
