Prasad staved off a stiff challenge from defending champion Anindith Reddy despite being beset by engine problems to hold on to the top position in the Euro JK class, while Mathew has been undefeated in the Suzuki Gixxer Cup and would look to maintain his winning streak.
In the second round, Vishnu suffered a huge setback as he didn't finish race one due to an engine problem and managed only 24 points.
Vishnu is ahead with 64 points, followed by Anindith on 63 and Chatterjee on 54.
A good weekend here can throw the championship open for the fourth and final round.
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In the LGB Formula 4, Prasad enjoyed a great stroke of luck and caught up with the leader Chittesh Mandody of Kolhapur on 42 points.
In the Red Bull Road to Rookie Cup, in which the winner would get to represent India in the Road to MotoGP in Spain, it is all likely to be a showdown between two of the eight participants from Mizoram.
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