"There is a big party going on for start-ups, but some will wake up with a hangover," Nikesh Arora, President of $70 billion Japanese telecom and internet giant Softbank told NDTV in an exclusive interview. Japanese telecom giant SoftBank that owns one-third of China's Alibaba.com has also invested in a number of Indian start-ups including Snapdeal, OYO Rooms, Ola Cabs and Housing.com.