dojani30 is right, a pocket door is your very best option. As it is now the door placement makes it necessary to enter the entire room before the door can be closed and that's awkward.

In the layout below, I took the liberty to move to vanity and toilet so you don't enter right into the toilet. I am not sure if you have room for that since I can't see the measurements of the width of your bathroom. This is something you can discuss with your architect. The main idea of the layout below is to block the original entrance of the closet so you can have a bedroom door. The entrance to the closet/bathroom can be where your dresser is and move your dresser closer to the window. You would have a choice of a door that swings inward, outward or a pocket door. Personally, I would go with a pocket door so the bathroom would feel more spacious.

Dimensions are not legible in the plan. Whatever we could make out that is not matching the ones you have mentioned above. Please recheck if the below matches with the floor plan that you shared. Bathroom 1 (brown tiles) - 7.9 ft x 4.1 ft Bathroom 2 - 7.4 ft x 4.1 ft Bathroom 3 (blue tiles) - 7.3 ft x 4.1 ft

Bhaskar, I would give it a pass. :) You have a bath of a size bigger than most of the baths in modern flats. Its approx 30% of your room size. Why do you want to increase it further. Please specify. Options that you may consider - reduce the wardrobe area a bit and compensate the bath. Increase the bath and use the TV or the Sofa wall for additional wardrobes. At one of the clients places we had merged two adjoining baths to make a king size bath. Take your pick. Thanks, Nitin Cornerstone Designs, Bangalore.