Indian shuttler Ajay Jayaram notched up a straight-game win over Malaysia's Wei Feng Chong to reach the semi-finals of the Russian Open Grand Prix Badminton tournament. The third seeded Indian saw off Chong, seeded fifth, 21-15, 21-13 to set up a clash with top seed Tommy Sugiarto in the men's singles competition today.Men's doubles pair of Manu Attri and Sumeeth Reddy also reached the final four after getting a walkover from local pair of Andrej Ashmarin and Vitalij Durkin. They will be facing top seeded local pair of Vladimir Ivanov and Ivan Sozonov in semi-finals today.However, in the Mixed Doubles category, Indian pair of Akshay Dewalkar and Prajakta Sawant lost to Japanese pair of Yuta Watanabe and Arisa Hizashino in the semi-finals.It was also end of road for Tanvi Lad in women's singles after her gruelling battle against Evgeniya Kosetskaya of Russia ended with a 28-26, 13-21, 19-21 loss.