Hello SK Arun. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

Note that there is no entrance exam that is required by the colleges to take admission through lateral entry window, that is, admissions to students who have a diploma to their second year undergraduate course. 

So, there is no need to worry. I would just advice you to contact the college you want to study directly for more information.

Hope this helps you and all the best!