India, Dec. 27 -- R Praggnanandhaa fell to a shock defeat against his former coach, GM Sandipan Chanda, at the ongoing World Rapid and Blitz Championships in Doha. Currently in action at the open rapid section, the India No. 2 faced Chanda in Round 5 and was in a winning position. But then he was also running out of time, and ended up making a terrible error, crashing to a loss.

Chanda began his campaign on a strong note, beating big names. He defeated Levon Aronian and Praggnanandhaa in back-to-back rounds.

Chanda was Viswanathan Anand's second for his World Championship 2013 match against Magnus Carlsen. What made the win against Praggnanandhaa more special is that he has coached the Indian GM and his elder sister, Vaishali Rameshbabu...