Isha Groups journey began in Kolkata in the early 20th century when the illustrious businessman Rai Bahdur Sukh Lal Karnani ventured in the business of Real Estate development. In the early days, the company embarked on several residential and commercial projects, which have now become landmarks in the city. Karnani Estate (1944) on A.J.C. Bose Road with over 200 units, S.S.K.M Hospital (1946) named after the pioneering figure of Isha Group, Rai Bahdur Sukh Lal Karnani.