Thank you Nishant Sir for your detailed response. Truly appreciate your help. I have two more questions that arises in my mind by your answers:

1. When you said "Normally the divorce decree is give immediately after finalization of proceedings.", 
(a) Did you meant that divorce decree is given once the alimony amount papers are ready and signed by both the parties. (and alimony amount could be deposited in the reasonable time in one go or in installments as suggested by the court).
OR 
(b) Does it mean divorce decree is given only after the alimony amount is deposited (before the reasonable time given by the court to deposit it)?

2. In case the divorce decree is given once the alimony amount papers are ready and signed by both the parties (option 1(a) above) but entire alimony amount is not yet deposited and if the party who is receiving the alimony remarries then will that party still get the remaining alimony amount?

3. As you said that still this case be a contested one and not the mutual consent, Is it true then both the parties have the option to challenge the judgement in higher court. If yes then shouldn't the parties wait for 3 months before getting remarried?

Waiting eagerly for your response. Thank you again.