Answers

2015-12-16T20:52:02+05:30
Actually president is known as Head if the state (here the state refers to the nation) while the prime minister is only the head of the government.President is known as the signatory person that is without his permisson or sign,no law can be passed.Hope it helps and pls mark as the best answer. :-)
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2015-12-20T12:09:09+05:30
Prime minister is from a certain party so it can favour their parties problem .president is not from any party that is the reason why which president is needed
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