Jain Deemed-to-be University, Bangalore

Yes, you can get admission as the minimum eligibility criteria for the same is pass in the 12th standard from recognized boards like CBSE/ISC/PUC or equivalent board.

Yes, you can get lateral entry after completing your diploma from Arka University. On the basis of last year's percentage of diploma, you will get admission.
Best of luck for your future and if there's any query, feel free to ask.

Amity is the best amongst these 4 to pursue BBA. As its a renowned University and provide really good placments as well.

Please check for your eligibility for a PG course in Forensic Science from the criteria mentioned below:
Eligibility for PG in Forensic Sciences:
Minimum eligibility criteria for PG in Forensic Science course may vary across institutes. Primarily, the criteria include:
Bachelors degree in science/ engineering / pharmacy/ medicine, obtained from a recognized university.
A minimum aggregate score of 60% at the level of graduation. Regards.