1. I want a job  after diploma 15000 salary .

This is amazing.

But mam tell me in present b.tech is not available for crrosponding.

So tell me please what i do now with job after diploma in mechanical engineering..

My interest in designing.

After Diploma in Mechanical Engineering, you can go for short term certificate courses like CNC Training, CAD/CAM Training, Catia, and Unigraphics etc. You can even go for a proper btech degree in Mechanical engineering or related field. There are post graduate diploma courses you can do like in Machine Maintenance, Product and Tool Design, Mechanical Safety Engineering, and Applied Mechanics etc.

In terms of jobs, after completing mechanical diploma, you can go for  junior level posts in private or government sector. You can try for the positions like Technician, Supervisor, Junior Engineer, Clerk etc. in government sector. Taking various entrance exams for private and centralized banks as well as SBI and RBI is also a very good option.

Based on the above you can decide what you are most interested in. Let me know in case you want to know for any specific field mentioned above.

Good Luck.