Yes, in line with India’s visa policy, British citizens must have a valid visa to travel to the country (unless they are also an Indian national).
India has different visas and permits for different reasons, such as tourist visas, medical eVisas and residence permits. UK citizens must apply for the type that suits their needs.
Travelers from England, Scotland, Wales, and Northern Ireland can obtain Indian visas for a number of purposes exclusively online. The electronic visa (e-Visa) system provides a quick and easy way for Brits to obtain a tourist visa, business visa, or medical visa for India.
For long-term visas and permits, Brits should enquire at one of the Indian diplomatic missions to the UK. These are the High Commission of India in London, one of the Consulate Generals in Birmingham or Edinburgh, or the Honorary Consulate of India in Belfast.