Kashyap believes many Indian badminton fans wrote off his achievements in the face of compatriot K Srikanth's meteoric rise to the world number four ranking.
He defeated Srikanth 23-21, 23-21 in a final that lasted 52-minutes.
Kashyap said: "It is a great way to start the season. Actually, in November itself, I thought about trying and doing well in this two events – Malaysia GPG and Syed Modi. I lost in the pre-quarters in Malaysia but luckily I could win a title in this event.
"I am very happy to win this. I thought I needed to do well. Srikanth has been doing so well in the last year and suddenly he rose to World No. 4 and everyone was counting me off.
"When I entered this event, people said I was not in form and told me that I didn't play well last year. But I told everyone that after the Commonwealth Games I actually played the best in my career.
"I reached the quarters, semis and quarters in the three tournaments that I played in. It's just that Srikanth had an extraordinary year and so everyone thought I was not playing well. So it was an important victory."