Doctor

Mechanical engineering is a better option.

Armed Forces Medical College (AFMC) is a premier medical institute of India. AFMC will accept NEET score for admission to MBBS programmes. AFMC MBBS 2016 admission will be done on the basis candidates marks in NEET 2016 and in ToELR (Test of English Language, Comprehension, Logic and and Reasoning).
As you are in 10th, please complete 12th with Physics, Chemistry & Biology with good score in NEET.

The basic qualification will be MBBS.

Dear Gandip,
USMLE is a three step test taken to practice medicine in US. Just be aware that is a tough examination and requires a great deal of hard work and dedication plus knowledge. You must hold relevant qualification to be eligible. Kindly, visit the USMLE website for all details:
http://www.usmle.org/

Yes, after completion of the BAMS course, work with an experience doctor. You will get the experience in that course. Fresher and experience doctors are eligible for this.
The jobs can be posted in the following link:
www.indeed.com

MBBS is a good course, but you have to pass the NEET exam. This course offers very good salary.

You need to score above 50 percent marks in class 12th in PCB. Start preparing for various medical entrance exams, and try to score good marks in them.

Dr. title is used by MBBS qualified doctors, BDS qualified dentists, Ph.D holders and qualified physiotherapists. Some alternate medicine professional also use Dr. in front of their names which is not approved by Medical Council of India. Eminent persons who are awarded doctorate for their excellent work may also use title of Dr.