Dear bhanu,
the arabic belly dance workout videos posted by one of our member worked wonders for me..i could see a drastic change in my dress fitting around my waist and bellly area once i started doing those exercises. maybe you can give it a try.

just posting the links again here in case you dont find the thread.
YouTube - Arabic Belly Dance Fat Burning Part 01 of 04 YouTube - Arabic Belly Dance Fat Burning Part 02 of 04 YouTube - Arabic Belly Dance Fat Burning Part 03 of 04 YouTube - Arabic Belly Dance Fat Burning Part 04 of 04
added to this you can also do this set of raina exercises which gives a good tone.
legs and buns-http://www.youtube.com/watch?v=ZFc8d45y5yE&feature=related
flexi training-http://www.youtube.com/watch?v=SSpEZaZJem8&feature=related
arms-http://www.youtube.com/watch?v=xrVdOixmqao&feature=related
hips and waist-http://www.youtube.com/watch?v=MdM296hJxhU&feature=related
abs-http://www.youtube.com/watch?v=MdM296hJxhU&feature=related
hope these links are helpful.
luv,
dolly