Chasing 291 to complete a clean sweep, India A won in the 50th over with four balls to spare and two wickets.
Kedar Jadhav and Ashok Menaria starred for the hosts with half centuries. However, in the final stages, it was Mandeep Singh who took the team home under pressure, with an unbeaten 37 off 27 with three fours and a six.
Jadhav made 57 (61 balls, 5x4, 2x6) while left-hander Menaria struck 69 (50 balls, 2x4, 8x6). They had a partnership of 128 runs in 17.5 overs for the fifth wicket. At one stage, India A were in trouble at 79/4 in 19.2 overs. It was Jadhav-Menaria association that put them back on track in the chase. Opener Robin Uthappa made 46.
Jadhav and Menaria departed in the same over - 38th, raising Kiwis hopes. However, Mandeep, in the company of Rahul Sharma (20), thwarted the visitors.
When India A needed 25 off 18 balls, Mandeep hit two boundaries and a six off Scott Kuggeleijn to make it just 7 off 12 deliveries. Rahul was dismissed of the final ball of 49th over but India A were just two runs away from victory with six balls remaining. Sandeep hit the winning runs off the second ball of final over from Colin Munro.
Earlier, opener Anton Devcich top scored with 66 as NZ A posted 290/9 in 50 overs. Corey J Anderson made 59 and Tom Latham hit 53. Basant Mohanty, Jalaj Saxena and Menaria took two wickets apiece.
New Zealand A 290/9 in 50 overs (Anton Devcich 69, Corey J Anderson 59, Tom Latham 53, Scott Kuggeleijn 29, Todd Astle 27, Basant Mohanty 2/39, Jalaj Saxena 2/60, Ashok Menaria 2/45) lost to India A 291/8 in 49.2 overs (Ashok Menaria 69, Kedar Jadhav 57, Robin Uthappa 46, Mandeep Singh 37 not out, Mark Gillespie 3/43)
Result: India A won the series 3-0
Previous results: 1st One Dayer: India A won by 6 wickets
2nd One Dayer: India A won by 6 wickets