Hey Gaurav! ^-^
I'm learning Chinese too. There are some Chinese Study groups on italki they are very helpful, maybe you can try joining them. I have made many Chinese friends who help me with my Chinese. Maybe you should try to find a native speaker to learn Chinese.
Here are some Chinese words that I know:
Nihao = hello
Nihao ma? = how are u?
Wo hen hao = I'm fine/well.
Ni na? = you.
Zao shang hao = good morning.
Hope that was a little helpful. GOOD LUCK! (^-^)