I am interested in chemistry so much better i can do bsc or diploma

You can approach for be chemical engineering

You have following options : BTech Chemical Engineering or BSc Chemistry or Diploma in Chemical Engineering. You may chose any based on your interests and personal conditions.

Dear Suma i would suggest you to go with Diploma course. As chemical engineering in diploma is an Professional course and It will give you more job opportunity after completion and also allow you to go for and B.E im chemical engineering and it would be easy way to be graduate.