u00a0Gaurav Dalal of Red Rooster Racing completed a successful weekend by achieving a double in the Formula Rolon Chevrolet class in the fourth round of the JK Tyre National Racing championship on Sunday.

However, Dalal, who had won the first race on Saturday evening, had to wage a stiff battle against Delhi's Karthik Shankar of Team NK Speed Racing before pulling ahead at the fag-end of the 10-lap race.