Every year, the Federation for Motor Sports Club of India organises motorcycle races.
They are held on tracks in Sriperumbudur, off Chennai, and Chettipalayam, near Coimbatore — both in Tamil Nadu.
Which is probably why most people who have made it big in racing are from south India!
Bike modification, maintenance etc require big money, but a beginner need not worry. All s/he needs to do is get a racing licence from FMSCI, and then apply to any of the three bike companies involved: Honda, Yamaha and TVS.