What is the duration for BE for those who are done with their Diploma?

If an individual have completed 3 year Diploma in engineering and want to pursue higher studies in engineering field then he have to appear for his states lateral entry exam (some colleges take direct admission also), thereafter you will get direct admission in 2nd year of B.Tech. It will take in to

After doing a Polytechnic Diploma, the 4 Year Engineering Degree become 3 year Engineering. You can get admission directly in 2nd year through LEET/Lateral Entry.