Bengaluru: Sood brothers -- Chandril and Lakshit -- stunned India's Davis cupper Somdev Devvarman and his partner Christopher Marquis in men's doubles, while Indian qualifier Prajnesh Gunneswaran also posted an upset win in singles on day one of USD 50,000 AirAsia Open here today.

While Somdev and Marquis lost 6-7 6-7 to Sood brothers in the first round, former Olympian and Davis cupper Vishnu Vardhan and Sumit Nagal outwitted Czech-Russian pair of Michal Konecny and Alexander Kudryavtsev to storm into the last eight here at the KSLTA Courts.