Anurag Mhamal gained from Deepan Chakkravarthy’s uncompromising approach and capitalised on a couple of late errors in a seemingly drawn position to move into joint lead with Aravindh Chithambaram after seven rounds of National chess championship here. On the top two boards, overnight sole leader and fourth seed Aravindh drew with fifth seed Deep Sengupta in 38 moves, just like …