Opting to bat, Ireland never really got going - being reduced to 18 for two in the 10th over. Then seasoned campaigner Grealey and opener Young put on 48 runs for the second wicket and looked like taking Ireland to a good position before India's star performer Neetu David broke through when she held on to a high return catch to dismiss Grealey, who was threatening to hold her own. Grealey contributed 32 valuable runs and Ireland at that stage was 64 for three.
In the very next over Sunetra struck, when she clean bowled Linehan for no score to reduce Ireland to 65 for four. Neetu once again struck in her next over when she had Young (19) caught behind - Ireland in further trouble at 67 for five.
Form then on Ireland struggled to come back into the game as Paranjpe bowling her gentle medium pacers picked up three more wickets, while debutant Amita Sharma chipped in with one to have the scorecard reading 83 for nine.
India, however, was not in a position to dismiss the Ireland team as the last wicket pair stuck on for 13 overs to take Ireland past the 100 mark.
Paranjpe returned with figures of four for 8 of eight overs, while Neetu David scalped two for 9 of nine overs.
In reply, India lost the early wicket of Paranjpe but from then on went unperturbed till it lost Jaya Sharma with just three runs left for victory. Jaya Sharma (52) in the company of her skipper Anjum Chopra put on 86 runs for the second wicket to guide India to its first win.
Jaya Sharma badly in need of a score behind her back played quite superbly smashing six boundaries on her way to a well-deserved 50. She struck the ball sweetly sending it scurrying to the fence while lacing it with some delicate shots off her pads.
At the other end Chopra played sensibly rotating the strike and keeping the scoreboard ticking. Chopra remained not out on 23.
India takes on Ireland in the second One-dayer on July 26.