Bengaluru-based e-commerce marketplace Udaan has claimed itself to be valued at $7.5 billion, as per its valuation report, becoming the fourth-highest valued startup in India. Udaan comes fourth after the top three most-valued Indian startups - Paytm ($16 billion), Oyo ($10 billion) and Byju's ($8 billion). Udaan was founded by ex-Flipkart executives Sujeet Kumar, Vaibhav Gupta and Amod Malviya.