Your questions are very serious. I consulted almost every concerned teachers when i was in part I regarding these questions and the result was nothing.


Some teachers support the idea of introduction some dont like it.
What i will advise you is purely my observation.


Start from where the question(asked in question paper) ends. There is no need of introduction. Yes you have to conclude and conclusion must be according to the statement asked in question. It makes no difference whether u make heading for it or not.


Your beginning must be very interesting and cogent that took the attention of reader.

Moreover be pithy and terse, these are two characteristics that make difference.

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