My daughter had barely any hair until she was past two. What was there was blonde, so she looked bald. Once, when she was somewhere around a year old or so, a woman in the store touched me on the shoulder, and she was laughing hard. She said, "Oh my goodness! I thought she was a Cabbage Patch doll until she started to sing." (My toddler was big for humming tunes. :) ).
My plan had always been to let her take dancing lessons when she was three. She was two when I brought her to a family member's dance recital, and I thought, "I don't know. None of those little girls on that stage look bald, the way she does." Well, by the time she was three she had real hair. In fact, she had enough hair that I could put it into an up-do made of lots of curls (although it took a lot of gel to be able to get the curls to stay in). She had fine hair, but it was like a lot of other little kids her age had.
By the time she was four (and right up to today - she's in her twenties now), she has had the most beautiful "shampoo ad" hair. It's perfect hair - healthy, shiny, not too thick, not too think.
So, after all that story-telling, I'll get to the point: Don't worry about your little girl's hair. It will grow.
Besides, based on what I see in the picture you have there, it looks to me like your little girl has plenty of hair. :) It just needs time to grow longer. By your name and pictures, it looks like you are from India. You just haven't been around enough babies of Irish, Scottish, and English parents. LOL If you were, you wouldn't be the least bit worried about your little one's hair. :)
(I just saw somewhere else you posted that your baby is a year old. She's got a whole lot of hair for a year old! It's only fine because she's a baby.)