Hi Anil,
Since your profile is not public, I can only see your Profile Pic.
I think you should update your picture to a better quality headshot (Half body).
Regarding winning jobs, I have a few easy suggestions:
1) Apply on the jobs which you are 100% sure you can do well. This way you can better address what the client needs and what you can do.
2) Try to not make any language errors in proposal.
3) Try with a lower bid and offer client a value for money.
4) Send your example work and show your client how well you have done a similar job.
I hope this will help.
Once you get going, Upwork is just love to work on.
Hanan