R. M. V. Gurusaidutt or Gurusai Datt is a badminton player from India. In 2005, he won the sub-junior national doubles title and also qualified for the sub-junior ABC Championship. This, according to him, spurred him to focus entirely on the sport. He started his training with Pullela Gopichand. In the international circuit, Gurusai Datt first appeared in the boys doubles category at the 2006 World Junior Championships. The pair of Gurusai Datt and K. Tarun progressed only until the second round. Gurusai Datt won the 2007 Andhra Pradesh Senior Badminton Championships after defeating the top seed – his first title. He played a vastly superior and controlled game and he looked the better player.
Gurusai Datt won the bronze medal at the 2008 BWF World Junior Championships that was held in Pune. In the profile of India's National Junior Champion, Gurusai Datt won the 2008 Dutch Junior International that was held in Haarlem. He became the first Indian to win this title. Gurusai Datt won the singles title at the Commonwealth Youth Games and Bahrain International Challenge badminton championship by the end of 2008. At the 2010 Yonex Sunrise India Open Badminton Championships, Gurusai Datt created an upset in the quarterfinal by defeating former All England Champion, Muhammad Hafiz Hashim. In the same year, Gurusai Datt represented India at the South Asian Games. He not only won the silver medal in the singles event but also the gold medal in the team event category