hey vaiibhav...good work....the UV needs to be adjusted on the centre table wood pieces...the forground glasses needs specularity and some reflections of enviro around..needs bump on the sofa cloth for a more natural feeling, pretty smooth now..may be a bit of colour/hue varioation of the wall than the sofas...something behind the window than a pitch black!!..
and above all..some definitions and direction of the main light source or light sources if its a night scene illuminated by artificial lights...cause, from the window behind, it seems like a night scene, but the shadows on the lower right sofa and the glasses suggest that its coming from lower right like a day light, and yah....shadows of the glasses will be transparent and how about some caustics??!!..
and it will be great if u put some briefs like the softwars, shaders and the renders u r using...
good going...keep that up...!!!