Question

Essay on Ground water the lifeline of the nation (1000 words).
First 4-5 paras on intro, details, need in daily life etc. Then about Ground water.

Answer 1

wait is it for the second national essay writing competition???
then split your sub-topics like this 
       -intro
        -importance of water
        -water lifeline of a nation 
        -importance of ground water in your country
        -depleting ground water levels
        -solutions for groundwater depletion
        -government's role in conserving groundwater
        -conclusion  
(remember that it must be written under sub-topics not in one flow)
   hope it helped.....