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Social Science

Lifelines of National Economy

Introduction

Transport (road, rail, water, air), communication, and international trade patterns.

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Transport and Trade

India: one of largest road networks. Indian Railways: largest employer. Golden Quadrilateral: Delhi-Mumbai-Chennai-Kolkata. Major ports: Mumbai, Chennai, Kolkata. Exports: IT services, gems, textiles. Imports: crude oil, machinery.

Key Points

  • National Highways: connect major cities
  • Railways: largest employer
  • Golden Quadrilateral highway project
  • Major ports for international trade
  • IT services: top export category

Quick Summary

  • Roads: largest network; Railways: largest employer
  • Golden Quadrilateral connects metro cities
  • India: IT exporter, crude oil importer

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