I'm a 3rd year b tech mechanical student. i want to what all are my carrier options in India and abroad? what all preparation i want to do ? whether i should go for higher studies or for job ? Any one who know about this field help me

you have mentioned that your are BTech(mechanical) 3rd year student. You have variety of options before you. You can do MTech,MBA,MCA, or go abroad for masters in mechanical. If you want to do mtech you need to appear for GATE. If you want to do MBA then you need to give MAT,CET,ATMA,XAT,NMAT,SIMCAT