Young Indian shuttler Devika Sihag clinched her maiden BWF Super 300 crown after Malaysia’s Goh Jin Wei retired midway through the women’s singles final of the Thailand Masters at Bangkok today.  The 20-year-old from Haryana was leading 21-8, 6-3 when world No. 68 Goh, a two-time former world junior champion, pulled out due to a hamstring injury, handing the Indian the biggest title of her career.