Ok thanks I would go for new RM 750xOverkill here would be 1000W. 750W is merely future proof.
you can also see some thermaltake PSUs like TR2 700w. Power Supply - Thermaltake TR2 700W Gold 80 PLUS Gold Power Supply - TR2-0700P-G in Pakistan for Rs.10300.00 | Computer Zone It's falling right under your mentioned budget. But it looks a cheap unit. Right now RM 750(x) is a quality consideration above all.
While you can consider the new PSU, just take a look at this offer might be a valuable option since it is less used. [PSU] Corsair RM750x (Used 8 months)
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