New Delhi, Dec. 14 -- The 15th edition of the National Street Food Festival opened at Jawaharlal Nehru Stadium in Delhi on Friday, bringing together more than 500 authentic dishes from 27 states. Organised by the National Association of Street Vendors of India (NASVI), the event continues till Sunday and is being held in a completely cashless format for the first time. Arbind Singh, national coordinator of NASVI, said, "This is also the first time that the entire festival is completely cashless and only online transactions are being accepted in stalls. This is to increase transparency and also make vendors more confident in dealing with online transactions." Entry is priced at Rs.200 per person. A notable crowd-puller is chicken podom, a tr...