What is next steps for career?

Question

hello ,

I have 4.6 yr of exp in dot net.i think as per my exp. i can eligible for senior s/w developer.

I try many interview in pune but due to some lacking of knowledge i failed.i don't know what the company expected from me!!. 

So, my question is  what are my next step(SKILLS) so i can best in senior s/w developer.