I think NIT Uttarakhand electrical will be better.Though both colleges are good.IET is more or less a regional college, despite being one of the best in the state. On the other hand NIT, Uttarakhand is associated with the “NIT family” and hence, better.

In case of placements, faculty, recreational facility NIT Uttarakhand is more better than IET lucknow .

In  case of branch it is dependent upto you in which field you want to go .But I think you should go for electrical. Electrical grads have many wide range of options. Chemical  branch is rather narrow in career wise unless you have a huge interest on those subjects. Therefore, it is dependent upto you.