How much watt psu do I need?

hhuuy897

Reputable
Oct 14, 2015
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I will be upgrading my rig with:
Fx 6300.
8gb ddr3 1600mhz ram.
gigabyte ga-78lmt-s2pt motherboard.
Sapphire Ati R7 250 2gb ddr3 gfx.

I recently own two hard disks(250gb+500gb 7200rpm each)
No dvd writer.

So to run these parts how much watt psu do i need?

if possible then suggest me some cheap psu under 1000-1500 inr.