IMP: We don’t make those solar cookers. We just use them. Please contact Mr Venkatesh of VESAT Solar Coimbatore at +91 94433-63540. Do give our reference.
Below is a photo of the solar cooker we bought from Vesat, Coimbatore, in action on our lawn. We have been using it for the past week to cook rice and daal. The food is in the black circular metal boxes inside the glass case. The mirror above directs the sun downwards. The boxes are black coated to absorb as much heat as possible. Will add some photos of the food too later.