Bharat Sanchar Nigam Limited (BSNL) is a very big company in India that provides people with things like internet, phone, and television services. It's like a big building with lots of people working inside to make sure that you can talk on your phone or watch your favorite TV show. They have many towers placed all over the country to make sure that you can use your phone or internet wherever you are. So think of BSNL as a very big company that helps people keep in touch with their friends and family through the internet and phone services.