Old Delhi is a place where a lot of people used to live a long time ago, even before your parents were born! It's a really old part of the big city of Delhi in India.
There are many narrow streets with lots of colorful shops that sell spices, jewelry, clothes, and other things that people would use in their daily lives. The buildings are old and have many different colors and patterns on them.
People in Old Delhi speak different languages and follow different religions, but they all get along with each other and enjoy living there. There are also many famous places to visit in Old Delhi, like the Red Fort and the Jama Masjid, which is one of the largest mosques in India.
If you ever get a chance to go to Old Delhi, make sure to try the street food, like spicy samosas and sweet jalebis, which are very popular! And be careful not to get lost in the busy streets!