Who are competent to contract? Section 11 of Indian Contract Act 1872
11. Every person is competent to contract who is of the age of majority according to the law to which he is subject3, and who is of sound mind, and is not disqualified from contracting by any law to which he is subject.
CHAPTER I THE COMMUNICATION, ACCEPTANCE AND REVOCATION OF PROPOSALS
CHAPTER II CONTRACTS, VOIDABLE CONTRACTS AND VOID AGREEMENTS