Hi Krishnamohan,
I think you have a nice platform to build out into an interesting idea. The level where you have to work against the enemy is a fun concept and would love to see more of them. One thing that wasn't clear at the start was that I was playing through an intro and not the actual game and the scenes could transition before I clicked through the text at the bottom, which I didn't realize at first was giving me backstory. If you pause the player's movement until after the text is clicked, or have it appear from the start I think that would help set the stage. I do like what you did with just in game objects to create some diverse images.