Hello Esha congratulations , you scored good in Upsee.

As far as my knowledge your chances to get CS branch in iet Lucknow are less. Other than that you  can get any other college .

You should go for counselling may be you get Your desired branch in iet Lucknow.

For more confirmation you can visit.

https://www.careers360.com/upsee-college-predictor

Good luck.