IPU CET Counselling

You can contact to the institute directly or through application.
It maybe late but it will surely include counselling.

Since u have missed the deadline to pay 40000. now u are not eligible for round 2 and 3. but u have to wait for spot round.

Yes, Guru Gobind Singh Indraprastha University conducts a common entrance test for those students who wish to seek admission in the BCA course. The IPU BCA selection procedure is given in the subsequent paragraphs. This course is a gateway to lucrative jobs as software developers, system administrators and hardware experts. Reputed IT companies such as Infosys, Wipro, and TCS are open to hiring BCA graduates from GGSIPU.

Yes, you can join B.Tech programme after completing Polytechnic in the Diploma of engineering. If you take admission through lateral entry examination after Polytechnic then you will get admission directly into second year of engineering. The Lateral entry examination is state level examination.

Undergrad college matter for selection IIMs and FMS but not a single criteria. It more depend on 10th, 12th, graduation Mark's, achievements and test score, etc. It also depends a lot on GD /PI score. IIM, XLRI, FMS are not the end there are many good B-schools.

Just go through this link and fill out the required details:
https://www.shiksha.com/college-predictor