A partnership in India is governed end to end by the Indian Partnership Act, 1932, a central statute that applies across the country (the earlier carve-out for Jammu and Kashmir was removed in 2019). The Act defines the relationship in Section 4, sets out the mutual rights and duties of partners in Sections 9 to 17, and deals with dissolution in Sections 39 to 44. Where the deed is silent, these default provisions fill the gap, which is precisely why a thin deed is dangerous: a court will simply apply the statutory defaults, including equal profit-sharing regardless of how much capital each partner actually contributed.
Registration of the firm is optional but heavily advisable, and this is where most founders underestimate the stakes. Under Section 69, an unregistered firm cannot file a suit to enforce a contractual right against a third party, and an unregistered partner cannot sue the firm or co-partners to enforce a right under the Act. The Supreme Court reinforced how strictly this bites in V. Subramaniam v. Rajesh Raghuvandra Rao (2009), upholding the bar even on suits for dissolution and accounts where the firm was unregistered in the relevant state. The disability is not cured retroactively: registering after a dispute arises does not save a suit that was filed when the firm was unregistered. Registration is done with the Registrar of Firms of the state where the firm carries on business, by filing a statement under Section 58 in the prescribed form.
The deed must be executed on non-judicial stamp paper, and stamp duty is levied under the relevant State Stamp Act rather than a single national rate. Underpaying stamp duty is a common and serious error, because an inadequately stamped deed can be held inadmissible in evidence until the deficit and penalty are paid. The authoritative reference for the statute itself is the Indian Partnership Act 1932 on the India Code portal, maintained by the Government of India. For the broader contractual backbone, the Indian Contract Act, 1872 continues to apply to the deed except where the Partnership Act expressly says otherwise.