Supriya,
Just saw the link you gave...
My God!! $85 for the lunch box!!!???? Atrocious! We might as well grab a couple of sets when we go to India..or if someone comes here to visit us.
Rithi,
The microwaveable glass containers (from pyrex) are really worth buying. They come in different sizes and some exclusively for packing lunch. These can be used in MW and the lids hold in place.