Hi sympmarc,
Thanks for replay. I am using jquery.SPServices-0.7.2.js and jquery-1.6.4.min.js version. I have near around 3 lake data in list. But my query returns only 15 records. To fetch 15 records it takes 10-12 seconds. Additionally if i run my query in caml viewer it take 1 seconds to fetch data.
Regards,
shraddha