i am thinking to buy this charger.any suggestions on how much it will be reliable will be appreciated...
https://rcbazaar.com/products/1625-3-in-1-lithium-polymer-battery-lcd-balancer.aspx

But thats not a charger, it will show you the voltage of the battery and every cell in it.

...and will help in balancing/discharging the voltage in each cells.
It's a LiPo Balancer

This video might help:

Mistaken

What you exactly want, Lipo charger or a balancer....

Lipo charger,below 1500

Lipo Charger... ok... Below 1500/- you'll get the chargers that have balance charging and a few have fast charging features. If you want universal chargers then you need to spend some more. Try out these links:
http://www.quadkopters.com/product_category/lipo-chargers-accessories/
http://www.rcproduct.in/10-other-items-and-parts
http://www.muav.in/?wpsc_product_category=chargers
http://www.rcdhamaka.com/index.php?main_page=product_info&cPath=102_96&products_id=1586