I have chosen 2 PSU for my PC
1-http://www.flipkart.com/corsair-cmpsu-750txv2uk-750-watts-psu/p/itmd5xz5pkgddqmw?pid=PSUD5XZ4YUHYSNNC&'
2-http://www.flipkart.com/corsair-cmpsu-1200-axuk-1200-watts-psu/p/itmd5xz5nmhzq7bj?pid=PSUD5XZ4W5HFSRYK&
EDIT- 2GB RAm
motherboard- gigabyte ga-g31m-es2l
PSu-corsair 450 w
1-http://www.flipkart.com/corsair-cmpsu-750txv2uk-750-watts-psu/p/itmd5xz5pkgddqmw?pid=PSUD5XZ4YUHYSNNC&'
2-http://www.flipkart.com/corsair-cmpsu-1200-axuk-1200-watts-psu/p/itmd5xz5nmhzq7bj?pid=PSUD5XZ4W5HFSRYK&
EDIT- 2GB RAm
motherboard- gigabyte ga-g31m-es2l
PSu-corsair 450 w