New Delhi: Shuttler Sourabh Verma says it was his perfect execution of plans which helped him clinch his second national title but insisted he needs to work harder to challenge the best in the world at All England Championship next month.

"I am really happy to win my second National title. It has been a great week for me. I was able to focus and perform well and also recover well after the matches. I guess my execution was good and so I was rewarded," Sourabh told PTI.