I dont have a programing background and I feel I should atleast get one scripting language inorder to understand the exploits . Can you help me decide which language should I go for which I can learn in a short period of time . Socket Programing is included in PHP , Perl , Python and several others I believe but since I am no good at any of them I cant decide which one to go for .

Manu has given you a perfect suggestion. Starting out with a scripting language might weaken your concepts as it does not contain some important concepts like data types etc. C and C++ will provide you a solid foundation. You'll find that once you've learned these two languages, learning any other language will a piece of cake.

You can choose any scripting language you like. I personally prefer perl. If you know some bash scripting then learning a scripting language won't be difficult for you.

Also, do you want to be just able to understand exploits form exploit-db or are you interested in coding too? I'm learning some exploit development from the following website http://pentest.cryptocity.net/ check it out. It'll give you some better understanding of vulnerabilities and exploits.