Explain the concept of 'misrepresentation' in matters of contract.

Sohan induced Suraj to buy his motorcycle saying that it was in a very good condition. After taking the motorcycle, Suraj complained that there were many defects in the motorcycle. Sohan proposed to get it repaired and promised to pay 40% cost of repairs. After a few days, the motorcycle did not work at all. Now Suraj wants to rescind the contract. Decide giving reasons.

need answer with reference to Indian Contract Act, 1872