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3.
ANY BODY WHO HAS THE REOURCES should go to study abroad as
1) You get International exposure.
2) You get exposure to better technology
3) Faculty in foreign countries is well paid and therefore you find experienced person - who have worked in Industry come back to educational Institutions out of their love to transfer the knowledge i.e. committed and knowledgeable.
BE AWARE YOU CAN ALWAYS COME BACK TO INDIA and utilize your KNOWLEDGE ACKQUIRED to contribute to country
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4.
For some it is the abundance of research opportunities in specialized fields. It is also a rewarding experience to have lived and experienced a totally different culture. For the rest its an easy life coupled with the phoren craze. An increase in social status back home in India is an endeavour for some. For others it is due to a shortage of seats and the bogy policy of reservation that cuts their chances in India making them seek avenues overseas.
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5.
I will only say one thing that if you go abroad do not come back.Even if you come back do not dictate to Indians who could not go.I have about 75 Indians from my IIT in US siance 30 years who are just not bothered about india at all.
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7.
They go abroad under compulsion. In our country better colleges are not available. teachers are indulged in dirty politics. they teach less in colleges but concentrate on tuition.