Hi Girish, you have the sharpness spot on here, as it shows up the finer detail so well. Great DOF on the babler, and love the eye. Im glad there is a bit of green in the BG, as maybe having a full brown BG may have been too overpowering against the babler.
Very nice image here. Detail is there, and I think you can enhance it a bit with just a tough of contrast on the bird.
Stuart mentioned the wonderful background, and I agree. I may try to clone a bit of the black on the left portion of the image. Not get rid of it (as I think it compliments the bird well), but just make it less prominent.
IQ, perch, comp all excellent. The BG looks very appealing, but you could soften the vertical edges of the brighter spot at left. All-in-all a strong image.