Gurudwara Sri Mai Than Sahib stands in Mohalla Mai Than in Agra city, at the former home of a woman named Jassi, who once worshipped an idol of Krishna as her husband. When Guru Nanak Dev Ji passed through during his journey to South India, Jassi asked him the way to God, and his teaching moved her so deeply that she abandoned idol worship and became a devoted follower, turning her home into a centre of Sikh teaching. Bhai Gurdas Ji later stayed here two and a half years, composing his Kavitt Swaiye in Agra, and Guru Hargobind Sahib Ji also stayed at Mata Jassi Ji’s home when she was 175 years old.

When Guru Tegh Bahadur Sahib Ji later visited, Mata Jassi Ji gifted him a length of cloth woven by her own hands, and Guru Sahib stayed about a month, during which he laid the foundation of a well to provide the sangat with clean water — still present at the Gurudwara today. On a later visit, courting arrest for the sake of the Kashmiri Pandits, Guru Sahib comforted Mata Jassi Ji’s fear of being forgotten after death without an heir, telling her that a name carried by blood fades in a generation or two, but a name bound to devotion to God endures — and so, he told her, hers would be remembered in Sikh history for as long as Guru Nanak Dev Ji’s own name is honoured.