English is universal language which can be understandable by any country in world.it students are preparing for improve their skills.

Source: http://www.diaspocareers.com/

Fairly important
at least in career life

English as a universal language has become the key tool of globalization. The importance of English for International Business, depends on the number of people who speak it and for what purpose the language is spoken. But what matters most, is to understand how to use English language rather than just knowing it.

English is the perfect verbal communication medium for many governments around the world, and it is also well known in business, education, world news, health sector and communication. In many places such as Asia, Africa, and South America, the ability to learn English will determine who will increase their living standards, and who will remain in poverty.

Using English efficiently and leading a good life have much in common. The study of English constitutes much more than the technicalities of grammar, punctuation and spelling. Through basic and advanced courses in literature and composition, students are prepared to sharpen their reading and writing skills.

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You can express better if you out of india;
in india you just express the depth of your knowledge in english though you have better power of expression in your mother tongue. we feel we are turned angrej.