All India Institute of Speech and Hearing is a special place where people go to help with their talking and hearing problems. It's like a big hospital for people who have trouble talking or hearing.
There are special doctors and therapists who work there to help them. The doctors are called speech pathologists and audiologists. They have lots of tools and machines to test and help people.
For example, they might use a machine to see how well a person can hear different sounds. Or they might ask a person to say different words to see how their mouth and voice work.
The people who go there might have been born with these problems or they might have had an accident or illness that caused the problem. But the good news is that the doctors and therapists at this special hospital can help them, and make it easier for them to talk or hear.