Hello Vijayaraja

80% in diploma in engineering is very good score. You can get an engineering seat , lateral entry in anna university.

Anba university,  Chennai offers various engineering courses.

Mechanical engineering

Civil engineering

Computer science and engineering

BE Electrical and electronics engineering

Information technology

Chemical engineering

Textile technology

Leather technology

Entrance exam - TAN CET ,TNEA ,jee main

Fees for B tech course in anna university is 5 lakh 1st year