Sony Entertainment Television’s flagship singing reality show, Indian Idol 15, is all set to culminate in a grand and unforgettable finale! This season’s journey reaches its pinnacle with The Grandest 90s night, celebrating the golden era of Bollywood music. The spectacular night will witness stunning performances from the finalists, in the presence of the esteemed panel of judges – Shreya Ghoshal, Badshah, and Vishal Dadlani.…