He also built in the city a mosque and a handsome gurudwara at Sultanpur Lodhi, sacred to Guru Nanak. Jagatjit Singh was one of the representatives of India at the League of Nations in 1926, 1927 and 1929. On the lapse of British paramountcy in August 1947, Kapurthala state acceded to the Indian Union and joined the Patiala and East Punjab States Union (PEPSU) as constituted in 1948. Maharaja Jagatjit Singh was appointed UpRajpramukh of the Union. Maharaja Jagatjit Singh died on 19 June 1949.
1. Ganda Singh, The Patiala and the East Punjab Slates Union. Patiala, 1951
2. Griffin, Lepel, The Rajas of the Punjab [Reprint]. Delhi, 1977