The David Sassoon Library and Reading Room is a Grade I Heritage building in Mumbai's Kala Ghoda Art District and one of the oldest educational institutions in the Victorian Gothic and Art Deco Ensembles of the UNESCO World Heritage zone.It was built in 1867 and is one of the earliest educational institutions in Mumbai's Victorian Gothic and Art Deco ensembles, which is a UNESCO World Heritage site. The library reopened to the public on June 3 after being closed for 16 months for renovations.