Thanks for replying.
The PSUs you both have suggested unfortunately not available in my country india.
Here only selected Antec coolmaster corsair PSUs are avialabe.
I have selected this one
http://www.snapdeal.com/product/corsair-vs-550-smps/509795
It's the cheapest 550W PSU.
can you please confirm that its compatible with my system components.
Here are all other PSUs available from where you can help me to select a good PSU.
http://tinyurl.com/mnh95wg