Thirty-one assemblies, one dataset.

Ajmer held a single assembly election before merging into Rajasthan.

Bhopal's only election ended in a landslide — then the state itself was absorbed into Madhya Pradesh.

Congress won Bombay's much bigger second assembly election, its last before the state split into Maharashtra and Gujarat.

Before merging into Mysore, Coorg held its one and only election, won comfortably by Congress.

The Maharashtrawadi Gomantak held onto power in Goa, Daman & Diu, widening its majority in the union territory's assembly.

Congress won a majority in Hyderabad State's only general election, then the state was dissolved and split up.

Congress swept princely-India's newest state in its only assembly election, before Madhya Bharat later joined Madhya Pradesh.

The DMK swept Madras State's 1967 election, ending Congress's unbroken rule since the state's first election.

Contesting under a new banner after Congress split nationally, its Mysore wing still won decisively.

Congress won a clear majority in Patiala and East Punjab States Union's second election, after a divided first vote.

In its only state election, Saurashtra handed Congress a commanding majority before merging into a larger state.

Congress won again in Travancore-Cochin's second general election, but still fell short of a majority.

Congress won comfortably in Vindhya Pradesh's only-ever assembly election, shortly before the state merged into Madhya Pradesh.