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Study is not the only duty in student life.They have some other duties and responsibilities. I will talk about the other factors which they can do for mankind.
Man has three duties, duty towards God, duty towards parent and duty towards mankind. Student life is the best life to do something for mankind.
In country where illiteracy rate is higher student can open night school and teach the illiterate people. During vacation they can go to village to teach the illiterate because villagers can not have much facilities in village so the literary rate is very poor in village.
During floods and cyclone, famine students stand by the affected people. Can raise fund to help them.feed the hungry, nurse the sick and cloth the naked. During epidemics medical students and other studen may serve the sick with proper food , cloth , medicine etc.
Students are servant of society.They are soldier of social peace. They should serve society without any selfish motive.