UPCAT

As you already known that the best college of UPTU is HBTU, but is no more part of this organization. So, for CSE, you can try IET-Lucknow, but I will say your college does not depend but your branch depend upon placement, and CSE is extremely good branch in whatever college you got.

Hello Radha,
I can suggest you some name of college you could go for:
J. S. Academy of Technical Education, Noida
Institute of Engineering & Technology, Sitapur Road, Lucknow
Institute of Business Studies, Ch. Charan Singh University, Meerut
M. Engineering College, Gorakhpur
Institute of Co-operative & Corporate Management, Research and Training, Lucknow
Galgotia's College of Engineering & Technology, Greater Noida
Jaipuria Institute of Management, Ghaziabad

You have to attend counselling process and fill your choice as soon as possible. It may chance that you can get KIET or other good private college.

No, for lateral entry it's not a good rank. Around 100 is considered as a good rank for UPTU LEET.

Go for the link below to know about the refund policy of UPSEE:
http://www.uptunews.in/2015/06/refund-rule-for-uptu-2015-counselling-fee-allotted-college.html?m=1

You can get admission in this college but if you go till the last round then it will be better for you.

Yes, you can get admission easily in RKGIT with this rank.