Thanks All !
So Conclusion is, We should not use Headings or Sub-Headings and Length of the essay doesn't matter, what matter is your qualitative approach of writing.For the Coherent of paragraph using of transition words and for the improvement of essay facts and figures is compulsory which is also mentioned in FPSC requirement of Essay paper.
InshAllah will do my best to get good marks,
Hope your recommendations will be beneficial for us. Amen!
Regards,
