With the triumph, the Indian GM qualifies for next year's Tata Steel Masters Group.
R Praggnanandhaa split points with Czech hero David Navara while compatriot Aravindh Chithambaram escaped with a draw with another local star Nguyen Thai Dai Van in the first round of the Prague Masters.
Starting as second seed, Praggnanandhaa will have his task cut out with the white pieces against Navara, who has been around for a long time as one of the top European players.
Grandmaster Vidit Gujrathi won Tata Steel Chess Challengers 2018, at Wijk aan Zee, Netherlands, on Sunday. The victory ensured him qualification for the Tata Steel Masters 2019, where leading chess players from across the world, including World champion Magnus Carlsen, will take part.
World number seven Erigaise Arjun started his campaign on a positive note, outplaying Eltaj Safarli of Azerbaijan in the first round of the Sharjah Masters chess tournament in Sharjah.