Which are the oldest & youngest firms on Hurun India's 500 most valuable firms list?

As per Hurun India's list of 500 most valuable companies, 21 are older than 100 years and 52 companies are younger than 10 years. Forbes & Company, founded in 1767, is the oldest firm featured on the list, followed by E.I.D-Parry (India), founded in 1788. Mensa Brands, founded by ex-Myntra CEO Ananth Narayanan over six months ago, is the youngest.