Yes you can get CSE or ECE at LMNIT with this rank.I don't know why are you looking only for this branches it made it possible you are interested in this branches for you want to secure your cold area only in this two branches.

Either you get or do not get these branches doesn't prove that you are going to be e graduate with any of other branch because in LMNIT there is a branch change processor after second semester for which you can apply and change your branch.

Now get any of the branch in LMNIT and a little work hard can makes you able to change your branch next year to CSE or your deserving branch so just go for college not for branch it is not necessary that you are getting CSE or ECE in the first round apply for all the rounds get any of the branch and if that is not ECE or CSE then go for branch change of branch sliding at the time of admission at the same time if that doesn't happen then and study little bit good and you would be easily able to change your branch after 2nd semester .

Best of luck!!