The height and width of a 40-inch TV can vary slightly depending on the specific model, but typically a 40-inch TV has a height of around 20 inches and a width of around 35 inches.
As for the brands available in India, there are many options to choose from. Some of the popular brands for 40-inch TVs in India include Samsung, Power Guard, LG, Sony, Panasonic, TCL, and Mi. Each of these brands offers a range of models with different features and specifications, so it's important to do some research and compare options before making a purchase.