Hello STudent

After completing your diploma in mechanical engineering you can take the lateral entry in BTech in mechanical engineering and completing your BTech or BE in mechanical Engineering can go for MTech in mechanical engineering mekatronics, robotics, power plant engineering, CAD cam training, CCN mechanical designing, can do the masters in environmental  engineering, thermodynamics, design engineering you can do MS specialising the above-mentioned courses. Which will give give you a wide opening for teacher courses study or in placement.

Hope this helps.