On the fourth day of competitions at the London Olympics today, Indian participants will be seen in action in the following events:-In the second round of Men's doubles Tennis, the duo of Mahesh Bhupathi and Rohan Bopanna will take on the French pair of Richard Gasquet and Julien Benneteau, while the other Indian combination of Leander Paes and Vishnu Vardhan will face the French pair of Michael Llodra and Jo-Wilfried Tsonga.In Badminton, the pair of Jwala Gutta and Ashwini Ponnappa will be playing against the duo of Lei Yao and Shinta Mulia Sari of Singapore in their last group stage match of the women's doubles. In the Mixed Doubles event, V.Diju and Jwala Gutta will face Jung Eun Ha and Yong Dae Lee of Korea. In Men's singles, India's P. Kashyap will meet Tien Minh Nguyen of Vietnam.In the Boxing arena, L. Devendro Singh in 49 kg division and Manoj Kumar in 64 kg catagory will begin their campaign.The fortunes of K. Ravi Kumar will also be decided today in the Men's 69kg Weightlifting category.In the Men's individual events of Archery, Jayanta Talukdar, Rahul Banerjee and Tarundeep Rai will be competing. The women's individual events will see India's Chekrovolu Swuro in action.In the Rowing competitions, Swarn Singh will compete in the quarter-finals of the Men's Singles Sculls. The Men's Lightweight Doubles Sculls repechage event will feature the pair of Manjeet Singh and Sandeep Kumar.