The National Commission for Scheduled Castes (NCSC) has issued a notice to restaurant aggregator Zomato over a controversial ad which showed actor Aditya Lakhia, who played the Dalit character Kachra in the film "Lagaan", as items made of recycled waste. The ad, which draws a link between the character Kachra with 'kachra', the Hindi word for garbage, was aired on World Environment Day on June 5. Zomato deleted the ad after it came under attack for being casteist. NDTV's Vasudha Venugopal takes us through the whole fiasco.