First of all, apologies for the delayed response to the puzzle, I was traveling outside the country on the past weekend.
Thanks to everyone who tried this puzzle – I received one of the best responses to date from this puzzle. The first ones to solve were Abhishek Pal, Ruchir Godura, Christina Beamer, Rohit Gupta (along with Mehul and Mayuri) and Tushar Kamat.
As always, the answer is in the following video link:
http://www.educreations.com/lesson/view/solution-to-puzzle-27/9761064/?s=SyVEDT&ref=link
Hope you enjoyed this one!