M.Tech

Yes, It is helpful. Since the MBA course will improve your interpersonal, communication, presentation skills. There are many advantages of doing MBA after engineering. Lets see how it will help. Get a big picture of the job:
Speed up the pace of your engineering career with the help of the MBA knowledge which would help you know the business perspective of your job. Understand the hierarchies and work towards the growth in your career rather than keeping it stagnant. Get out of dealing just with the theoretical components and become involved in the real business. Also, the new-age companies want engineers who are equally good at teamwork and managerial skills. This would be best satisfied by getting into a management programme. Develop your interpersonal skills:
An expert-level technical knowledge would make you the best engineer out there, but that is not enough to achieve a wholesome success in the career. An MBA programme offers a lot of opportunities that give a better shape to your personality by helping you develop communication skills, adaptability, leadership skills and many more. This will help you move smoothly on the path of achieving your ultimate goals. Becoming an entrepreneur:
For someone who had specialised in engineering and developed their own product, the next big step would be to commercialize or market the product for common use. This may be best done if you are your own boss. An engineer with management skills knows the right way to implement hardcore technical knowledge with management skills. They would develop a good team that would run the enterprise efficiently while taking care of the technical part personally
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Stanford gives mass MS admits and people who want to pursue Ph.D. there after their terminal master's may not get it. So it depends on whether you like research or not. If you want to apply for Ph.D. do it after your Bachelor's (but your profile should have rich and consistent research experience) else if you want to settle for your master's then the approach mentioned below should be followed :
1) GRE &get;= 330 TOEFL &get;=110, will increase your chances
2) You have an edge if you are from IIT, NIT and BITS with GPA &get; 8
3) Research experience - Not necessary. More important is doing coursework and course projects/internships in your field of interest. Doing research will boost your profile but if you investigate away from your field of interest it will harm you.
4) LORs - need not be from reputed people. Best combination would 2 from academia and 1 from corporate.
5) SOP - Most important. You should tell about your experiences and fine tune them to say how it will be useful to the programme you are aiming for. SOP should not reflect quantitative achievements (like scores) but what you learnt.
6) Extra-curriculars - Worth mentioning because they look at the balance you can create in you life.