Trending @Infosys; Should I join a start-up?

Hi Grapeviners,

I want to seek your advice on whether it would be a wise decision to join a <year old start-up? I have been at Infosys for 2.5 yrs with no hike and not much support from my seniors in terms of my career aspirations. It's very frustrating. I feel there's no one at infosys to listen to what my career aspirations are. I started giving interviews a few months ago. Some of them I couldn't clear, some simply told me 90 days NP is too much for them. Finally I have an offer from a start-up who agrees to the NP and also offering 40% hike. The start-up primarily works on the tool that I work on at Infosys so I am excited with the possibility of getting a lot of exposure while working on different kinds of projects there. This was missing at Infosys. They put me on a support project and despite having spent quite some time on the support project and me asking them to release me they're not willing to do so and put me on a project which will give me more exposure. I genuinely want to join the start-up but getting second thoughts on the kinds of risk involved like not getting salaries timely or termination in case they stop getting funds etc. I am married and hence not sure if I should take this risk. Please share your thoughts.