For most millennials, joining a startup is often a fashionable career choice, and for good reason — rapid growth, flex schedules, high interactivity and a sure shot boost to your entrepreneurial flair. Never mind the crazy hours, structure (or the lack of it), and the inherent risks involved. But it's not just the 20-somethings who are flocking in droves to embrace the self-starters' ecosystem.

Last month, hospitality startup Oyo Hotels and Homes appointed former IndiGo president Aditya Ghosh as its new chief executive officer (CEO) for India and South Asia. Ghosh, who comes with a robust experience, having played a stellar role in leading the airline for a decade, has been touted as the most high-profile entry till date in the country's startup scene. While Ghosh preps for his role, we reached out to senior executives, who have made the transition from traditional set-ups to startups, paving the way for what could soon become a trend.