Guru Gobind Singh Indraprastha University

Yes, you have to participate in LE. B.Tech (Diploma) entrance exam (CET code no. 128) for taking B.Tech lateral admissions in Guru Gobind Singh Indraprastha University and its affiliated colleges.

Sorry to say, but you will not get any college on the basis of your NATA and JEE Mains paper 2 scores. The reasons are:
90+ marks are considered as NATA cutoff for various government colleges.
300+ marks are considered as JEE Mains paper 2 cutoff for NITs and government colleges.

I am listing down some colleges affiliated to IP University that provide mass communication courses.
Maharaja Agrasen Institute of Management Studies, Vivekananda Institute of Professional Studies, Madhu Bala Institute of Communication and Electronic Media, BLS Institute of Technology Management, Tecnia Institute of Advanced Studies are some of the colleges that provide mass communication course.

IP University is good, if you get into the main campus of GGSIPU, rest all are of same level. Main difference is that all of them are private. Whereas, DU colleges are all centrally owned. You can find good infrastructure of almost all DU colleges, rather better than IP being government.

If you are looking for good placement, then you should join LPU. LPU will let you have a good package. DU is also good but placement is not so good.

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

In direct admission you will have to pay more money than through entrance exam but have you given JEE 2020 and results has come. Please check and comment me. If not. You can go for another option like state quota and much more.