Question [Q] Want to put CM mod in my IBall slide tab how shall i ?

I'm new to rooting and also forums like this. My English is also bad. Please bear it.
I bought an iball tablet slide 618i, i want to put CM nexus 7 ROM in to my tab. So how shall i do it and where shall i get it ?
Also if any other good ROM you would suggest for my device better than Nexus 7.

Thanks in Advance mates

Regards
Naveen Tulsi