Indian badminton ace PV Sindhu says she will be marked by opponents after her World Championships gold and would need to constantly discover "new things" in her game to maintain her stranglehold on international badminton. Olympic silver medallist Sindhu became the first Indian to win a historic World Championships gold medal after thrashing Japan's Nozomi Okuhara 21-7 21-7 in a lop-sided final at Basel, Switzerland last month. Asked about the challenges that she will face from now on, Sindhu, who boasts of two silver and as many bronze in the World Championships, said: "Pressure and responsibility will now be more. I know everybody will mark me now after the World Championship.

"Now I have to really work harder and change a few things and come with new things because everyone can see my game and know what I am playing. So I have to go with new strategy every time I go into the court," Sindhu told reporters here. The 24-year-old from Hyderabad said the World Championships gold medal took a long time coming and it was a result of hard work, besides all the sacrifices that her parents have made over the years. "I have been wanting this gold for five years. I have been losing every time. I also used to feel sad, but I always kept fighting back and working hard. My parents made a lot of sacrifices for me," she said. "Coaches role also has been important. My first coach was Mehboob Ali and then I have been under Gopi sir since I was 10. In badminton, you need to have a strong mindset." Sindhu will next play at the China Open World Tour Super 1000 (September 17-22) and Korea Open World Tour Super 500 (September 24-29) at Changzhou and Incheon City respectively.