The role played by India in achieving the sustainable development goals by 2030 is extremely crucial owning to its large but impoverished population. It is necessary for India to achieve these goals so that the world can achieve them. India is currently lagging in many of the goals, targets and sub-targets. But there was a time when India was the centre of sustainable lifestyle. Indian cities were well planned with remarkable sanitation and cleanliness. The excellent drainage system of Harappan cities is well known to everyone. The cities were divided into various layers with the most important structures located on citadel. The great bath of Mohenjodaro, the great granary of Harappa, the water conservation tank of Dholavira and the dockyard of Lothal are living examples of sustainable practices in those sustainable cities. The imperial city of Pataliputra is another example of a sustainable city. The city administration comprised of thirty members which was divided into six committees. There was a separate committee for registration of births and deaths. Similarly, the life of Kanyakubja as described by Hiuen Tsang reflects the sustainable lifestyle of the ruler as well as the people of the city. The early medieval age was categorized as dark age by many historians. But these ages have also produced remarkable cities. Anhilwada (present day Patan, Gujarat) was capital of Solanki dynasty of Gujarat in which we can find Rani-ki-Vaav which is an excellent water conservation tank accessible to the population of the city. Similarly, Bhoj of Parmar dynasty constructed several lakes, tanks and ponds in his capital city Dhar. It was the imperial city of Vijayanagar that can be described as textbook example of a sustainable city. The city was surrounded by seven walls. The agricultural farms in the vicinity which fed the city were fortified. The city was well planned into residential, commercial and military areas. This paper analyses the sustainable structures, practices and lifestyle that existed in the prominent cities of ancient and medieval India.