Sameer is right about WeChat, have a look at this video I shared on my LinkedIn few days ago about WeChat by New York Times -
IMO, Hike is heading WeChat's way in India, that's the prime reason it got heavily funded by Chinese investors. Who knows soon we will be able to book a cab, buy groceries, book a movie - all inside Hike (if you use it). I used it few months ago, it felt too much stuff is in there, I prefer simplicity so not using it on regular basis. Perhaps, people will start adopting to these "all-one-apps" soon!
WeChat is huge, 700 million people are using it in China, doing everything inside it from chat to shop (buy/sell) to date. From my personal experience, Chinese investors are traditional, and they're hot for India at the moment, they will bet on ideas in India which already has a successful Chinese role model. For sure.