Chinappa was placed tied 37th and nine shots behind Dou Zecheng of China, who grabbed a two-shot lead with a card of three-under 68.
Among other Indians Karan Taunk, Udayan Mane, Viraj Madappa and Syed Saqib Ahmed shot 80 each, and Manu Gandas was even further behind with 83.
Sixteen-year-old Dou Zecheng's hopes of following in the footsteps of compatriot Guan Tianlang were given a boost after the Chinese teenager played his way to the top of the leader board after day one of the Asia-Pacific Amateur Championship.
Dou, who rose to prominence earlier this year when he made the cut at the China Open, fired a superb, blemish-free 68 in cold, windy conditions at Nanshan International Golf Club to establish a two-shot lead over Korea's Lee Chang-woo (70) in second place.
Brady Watt (71), the Australian who reached the semi-finals at this year's U S Amateur Championship, is a shot further back in third place.
