Siddharth31 :
I am planning to buy a 780ti but with my psu I see lack of cables coming out. Maybe I am missing something. Please feel free to answer.
That PSU is garbage, and it's not worth the risk to even try with a card as expensive as a GTX780ti. It always amazes me on how someone can spend $600+ on just a video card, and refuse to spend over $40 on a good quality PSU. You would most likely kill your card and or system with that PSU, but it's your money.
You need to get molex to pci-e coneectors to do it, but I HIGHLY recommend against it.
Do yourself a favour and buy this PSU before you buy that video card:
http://www.ncixus.com/products/?sku=59616&promoid=1031 This XFX unit is manufactured by Seasonic, and they among the very best manufacturers so you won't go wrong. Lucky for you the PSU I linked is on special