I have completed my Diploma in 2014. If I want to take admission in BCA, can I get admission in the 2nd year?

All the colleges that I know of don't provide lateral entry usually. There is this college that provides Lateral Entry https://www.shiksha.com/it-software/course/amp/b-c-a-lateral-entry-direct-2nd-year-directorate-of-distance-education-madurai-kamaraj-university-287511 But again. Check with the coll

Hi Sana, It depends on the college/university where you wish to apply. Some institutes might offer lateral entry but again, you will have to check with the institute.