Hi Frontier and other group members, thanks for all your advice and help from the beginning.
Finally I preferred to apply through post as bit scared of going for in-person due to revocation of previous employer's license and also it saved few pounds.

I have received HO approval letter yesterday with my passport and waiting for BRP by next week. Hope to start working for new employer from 1st March.
hip hip hurray immigrationboard. Really helpful and appreciate to all of you, who are contributing their personal time to help others.