Santu -- sorry for the late response; only just saw this post. In addition to the great advice provided by Sameer from MBA Crystal Ball, you might find MBA Prep School
's online "virtual consultant" tools to be useful and affordable. We provide a step-by-step methodology for building great MBA applications, supported by videos, examples, tools, templates, and twice-monthly group coaching calls. Our monthly subscription is a fraction of the normal private coaching fees -- if you are so inclined, you can learn more at our site
Please also note that thanks to our special relationship with GMAT Club, you and all other GMAT Club members get a significant discount off your first month's enrollment by using/applying the discount code GMATCLUB
(one word, no spaces) on the /season-pass/ page on our site.
If you have questions about our tools, feel free to email me chris [at] mbaprepschool [dot] com
Regardless, certainly look at the free tools/advice that Sameer is pointing you towards ... and best wishes for a successful MBA application campaign!
If you find my response/post useful then please give it kudos!
MBA Prep School
San Francisco, CA