Hi Santosha,
i just wanted to add that my ds2 is a couple of months older than your dd (feb 09) and i wrote a post about being hassled to bf about 2 months ago. i was completely over it! he was asking (or i should really say, demanding) all the time and it was completely doing my head in.
Luckily a couple of wise BBers came to my aid and talked me through it all. Now things are soooooo much better. He is pretty much going all day without a feed now, and doesn't really start asking for it until about 4pm which is suiting me much better iykwim? i don't feel like he's on my boob all day and i'm actually really enjoying bfing again. my plan now is also to go till he's 2yo
so, what i'm saying is, just hang in there hun! she may just be going through a bit of a stage and you might find it all settles down a little bit in a couple of months. you're doing a great job, and giving your girl the absolute best start to life. well done