My average PCM group in 12th is less than 50, can i get admission in engg. or if will go for diploma can i get direct second year admission

With less than 50% in 12th it wont be easy in fact possible to get admission in Engg. Yes you can get direct admission in 2nd yr.engg.after diploma and there is no provision of direct admission in 3rd yr.anywhere. If you want you can join integrated diploma-B.Tech degree now only instead of worrying

Yes u can. the percentage criteria is 50%. u can take up engg. but if u go for diploma ,then based on ur marks in diploma u can get direct admission in second year engg.