Nasscom

New Delhi: The Indian start-up ecosystem is evolving and it is time for stakeholders to move to the next level and collaborate with the external eco-system, says K.S. Vishwanathan, Vice President at Nasscom."It is now time for the companies to move to the next level of mid-stage and growth," Vishwanathan, who is also head of Nasscom's 10,000 Start-ups programme, told  in a telephonic interview from Mumbai. A start-up is said to evolve through four stages -- early stage (idea or prototype), mid-stage (prototype to product), growth stage (product business) and mature stage (business to scale).The National Association of Software and Services Companies…