§11 — Determination of rights and duties of partners by contract between the partners. Agreements in restraint of trade

(1) Subject to the provisions of this Act, the mutual rights and duties of the partners of a firm may be determined by contract between the partners, and such contract may be expressed or may be implied by a course of dealing. Such contract may be varied by consent of all the partners, and such consent may be expressed or may be implied by a course of dealing. (2) Notwithstanding anything contained in section 27 of the Indian Contract Act, 1872 (9 of 1872), such contracts may provide that a partner shall not carry on any business other than that of the firm while he is a partner.