Hi, i am b.tech graduate with 5 years of experience in manufacturing and trading of communication and office automation product business, now i would like to do a MBA.I am finding difficulty in choosing which course suits me best and which institution, can anyone suggest me.

here are few questions to ponder:
- what is your budget?
- are you a career-switcher?
- what is your GMAT score?
- do you want to work in Asia/ Europe/ N. America/ latin America?
- what other language can you speak (other than your mother-tounge language and english)?

From what I observe from your profile, you'll be best working in industry like telecom, manufacturing, electronic, etc.
There are some schools I can suggest to you:
- IMD (switzerland).
Great school if you want to enter the industry (ie. Phillip, Evian, Novartis, etc.). But post-grad working permit (& language) might be a challenge.
- CEIBS (shanghai)
Since china still own the status as the world's factory for manufacturing. You easily get a job in manufacturing industry. However, Language barrier is very high! No mandarin, no jobs.
- Ross business school (U Mich)
Famous for its corporate strategy. Many grads moves on working to management consulting. C.K. Prahalad is teaching there. He is the author of "Bottom of Pyramid".