IIIT A doesent have a cse branch but ec of nsit is better than iiit a ece..as far as IT is concerned i would rate it above NSIT cs only because of the difference in the qualities of companies visiting IIIT A and NSIT...there is not a single company visiting IITs that oesent visit IIIT A.Also they have an extensive coding enviroment right from the first year with their curriculum involving projects in the 3rd year itself.. though nsit has a better name than IIIT A only because IIIT A is far newer institution but ask any cse guy from NSIT about the positions of IIIT A guys in coding websites and competitions he will tell you the story...
										

										
IIIT Allahabad IT is more preferable than CS in NSIT...
IIIT Allahabd is awesme insti for IT.. the placements even were too good from past 2-3 years...
many companies such as amazon,microsoft,google,yahoo visit IIIT A for recruitements....
 
but for ECE, NSIT is preferable..
all the best buddy.. :)