The Patna lad had one total of 1-under 143 at half-way stage at the par-72 Delhi Golf Club.
Simarjeet Singh who had made a hole-in-one in the opening round, brought in the day's best card of two-under 70 to jump to the third position at 149 along with Pratap Atwal and Ajit Rawat.
Feroz Singh Garewal was tied at the sixth position at 150 along with L Selvadurai. Varoon Parmar, Kurush Heerje and BR Raja brought up the rear of the top-ten with a total of 152 for a tied eighth position.
Meanwhile Udayan Mane and Samarth Dwivedi won the Team event which was played over two rounds with a total of 303.
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Aman looked set for an excellent round when he began with a birdie on the par-5 opening hole and even while he flirted with birdies, he made sure he did not commit any mistakes until the par-3 seventh where he made a bogey and also lost a stroke on the par-4 ninth.
On the back nine, a bogey on the par-4 11th set him back a bit but however with a birdie on the par-5 14th, Aman seemed to be back on track. A bogey on the 17th was followed by a birdie on the finishing hole as the young lad signed off with a 73.
143 Aman Raj (70, 73); 148 Udayan Mane (74, 74); 149 Simarjeet Singh (79, 70), Pratap Atwal (76, 73), Ajit Rawat (74, 75); 150 Feroz Singh Garewal (75, 75), L Selvadurai (72, 78); 152 Varoon Parmar (81, 71), Kurush Heerjee (78, 74), BR Raja (75, 77); 154 E Naresh (81, 73), Arshad Ali (79, 75), Md. Saleem (77, 77)
Team: 303 Udayan Mane & Samarth Dwivedi; 304 HS Kang & Pratap Atwal; 305 Simarjeet Singh & Vikram Rana; 314 Ankur Chadha & Feroz Singh Garewal, Saurabh Bahuguna & Jaibir Singh.