Explanations:The question asks about the river on which the Heritage City of Gujarat, also known as Old Ahmedabad, is located. To understand this, it is essential to know the geographical and historical context of Ahmedabad and the rivers in Gujarat.
Ahmedabad, the largest city in Gujarat, is situated on the banks of the Sabarmati River. The Sabarmati River is a significant water body in Gujarat, originating from the Aravalli Range and flowing through the city of Ahmedabad before joining the Gulf of Khambhat. The river has played a crucial role in the city's development, providing water for irrigation, transportation, and supporting the local economy.
The historical significance of the Sabarmati River is closely tied to the city of Ahmedabad. The river has been a source of inspiration for various cultural and economic activities, including the famous textile industry in Ahmedabad. Additionally, the Sabarmati River has been a focal point for several historical events, including the Salt March led by Mahatma Gandhi in 1930, which started from the banks of the Sabarmati River.
It is important to note that the other rivers mentioned in the options (Subarnarekha, Saryu, and Wardha) are located in different parts of India and are not associated with Gujarat or Ahmedabad. The Subarnarekha River is in eastern India, the Saryu River is in Uttar Pradesh, and the Wardha River is in Maharashtra. Therefore, these options are incorrect in the context of the question.
In summary, the correct answer is the Sabarmati River, as it is the river that flows through the city of Ahmedabad, which is the Heritage City of Gujarat. Understanding the geographical and historical context of the city and the river is crucial for answering such questions accurately.