major national waterways are: National Waterway It extends between Haldia and Allahabad, measures km and includes the stretches of the Ganga-Bhagirathi-Hooghly River system. National Waterway This waterway includes the stretch of the Brahmaputra river between Dhubri and Sadiya a distance of km. National Waterway This waterway extends between Kollam and Kottapuram in the state of Kerala. It is the first national waterway in the country with - hour navigation facilities along its entire stretch of km.
b) Oceanic Routes Oceanic routes play an important role in the transport sector of India’s economy. About India - Population, Transport, Communication & Trade e-mail etc. Personal Communication system enables the user to establish direct contact. The Indian postal network is the largest in the world with , , post offices.
Of these more than , , post offices are located in rural areas. The postal service was opened to the public in the country in . The first Indian postal stamp was issued in in Karachi. Collecting and delivering mail is the primary function of the department of posts.
It introduced the Quick Mail Service in . The Quick Mail Service functions on the basis of the system of PIN (Postal Index Number) code which was introduced in . The premium products include the Money order, e-money order, Speed Post, Express Parcel Post, Business Post, Media Post, Satellite Post, Retail Post, Greeting Post, Data Post, Speed Net and Speed Passport Services. India has one of the largest telecommunication networks in Asia.
Apart from the urban areas more than two-thirds of the villages in India have already been covered with Subscriber Trunk Dialing (STD) telephone facility, while International communication can be made through ISD (International Subscriber Dialing). There is an uniform rate of STD facilities all over India. Telephone is a form of oral communication. It is considered very essential for the growth of commerce.
It is the most preferred form as it provides instant communication. Mobile phone, fax and internet are the other personal communication services used