Jaslok Hospital and Research Centre in Mumbai was founded by philanthropist Seth Lokoomal Chanrai along with surgeon Shantilal Jamnadas Mehta. The hospital was formally inaugurated on 6 July 1973 by the erstwhile Prime Minister, Indira Gandhi.
The hospital got substantial publicity in the late 1970s when Jayaprakash Narayan was admitted for treatment of kidney failure by the nephrologist M. K. Mani. Narayan died there in 1979.
In the early 1980s the laboratories run there by P. R. Krishnaswamy had the first fully automated Kontron biochemistry analyzers, an electron microscope and an aminoacid analyser The India's first recorded AID/HIV victim died at the hospital on 9 June 1986, after a fortnight's treatment.
The facility suffered during unrest led by trade unionist Datta Samant. On 17 October 1979, after severing the gas, water and telephone connections and crippling the labour force in the hospital, the management had to shift nearly 294 patients to other hospitals in the city. Dr Rindani, the then Medical Director, stood firm, The police were called in and a court injunction prohibiting assembly of the agitating workers was obtained. Samant had to back down for the first time in his brand of union activities.
Jaslok Hospital is located at Dr. G. Deshmukh Marg., Peddar Road, South Mumbai, overlooking the Arabian Sea. The name Jaslok is a combination of the names of Seth Lokoomal and his wife, Jasotibai.