The document discusses various modes of communication in India, including postal services, telegraph, telephone, courier services, fax, email, internet, radio, television, and oral communication. It provides details on the history and growth of each method. Key points include that postal services date back to 1851 and now have over 1.5 lakh post offices, telephone connections have increased tremendously from 1.7 lakh in 1950-51 to over 49 million currently, and recent developments like fax, email and internet allow near-instant communication globally.