Deepankar,
Run through the search feature on this site and you will get more than what you want.
There is plenty of stuff. Just search with the right terms.
You haven't specified what specifically you are looking for as "soft skills and personality development"
are broader terms and all good trainers will want an answer to that.
To get you started Cite Hr search is one.
You may go to slideshare and authorstream but most good presentations are not available for download.
I have posted some soft skill ppt's which have been found useful by most of our members here.
Since I don't know what you want you can just head over to this blog and download all you like with a click.
I get my stuff from here -
PPT Slide Stream
Just go through their labels / categories and download it.
They have stuff on Communication, Leadership, Professional Workplace Etiquettes, Body Language,
Presentation for Executives (which is really awesome), and more.
Some of those PPT's have been posted here by others members. Search for them.
Incase you are in hurry head over to the site and have your fill.