Most people try to build muscle like Salman Khan by doing high rep isolation exercises But this doesn't works because you can't lift heavy enough to trigger muscle growth. If you want to build a body then it will have to take care of the diet as well. It is very important for our muscles to be healthy for all the activities of the body. Making muscles does not mean just going to the gym and make your muscle, but it is also necessary to keep the muscles healthy.
Relax!!! You are not the only one. We all cruise in the same boat. These are common concerns that everyone wants to build muscles.
The key to gain muscles and weight to a great extent depends on the food that you eat. It is very vital that your food is balanced and most of us fail to understand this.