Photos of the exterior and then the dilemma of living, kitchen, master bedroom would be the way I'd tackle it. Paint all walls in a simple background color that works with everyone's furniture - a warm off white would do it. Scrubbable paint in the kitchen and baths is a must. Do you have carpet or hardwood or other flooring? Carpet is acceptable for most rentals but will have to be cleaned after each departure. Don't forget safety requirements like smoke detectors and fire extinguishers.

The walls are painted with enamel. Would love some economical solution to work on the same.

The sheer curtains looks good. The thick curtains can be changed into a plain one (neutral grey maybe) instead of a patterned one as it looks crowded. The tv can be wall mounted. Remove the decorative items kept on the tv unit. Reposition the black loveseat to near the sofa at an angled position. The cushions on the sofa needs some colors. Maybe you can match the colour of the cushions/throws to a painting . Painting can be hung on the wall above the sofa.

Greeting sir, nice to see your replies....please note this white wall contains unistone red brick work (2.6 inches*8inches)concealed with white sticky tape .done to prevant paint stains as noticed and suggested . about the wall coming out of the slope its not in actual merely an illusion becoz of the taping... also.the red brick work is complimented with white cement....for flooring steel grey granite and s white As planned...im attaching u final finished look wud b like...v wud b putting artificial grass garden besides the right side of the building ground floor.. good to know appreciative responses from you..please suggest another ideas floor plan ill share for sure