INDIAN HISTORY

Detailed explanation-1: -Detailed Solution. The correct answer is Dholavira. The first astronomical observatory related to the Harappan civilization was found at Dholavira in the Kutch district of Gujarat. Scientists identified two circular structures used for observational astronomy during the Harappan Civilisation.

Detailed explanation-2: -A group of scientists has identified two circular structures at Dholavira in Kutch district of Gujarat, which they say is the first identification of a structure used for observational astronomy during the Harappan Civilisation.

Detailed explanation-3: -Dholavira is an archaeological site at Khadirbet in Bhachau Taluka of Kachchh District, in the state of Gujarat in western India, which has taken its name from a modern-day village 1 kilometre (0.62 mi) south of it.

Detailed explanation-4: -The civilization was first identified in 1921 at Harappa in the Punjab region and then in 1922 at Mohenjo-daro (Mohenjodaro), near the Indus River in the Sindh (Sind) region. Both sites are in present-day Pakistan, in Punjab and Sindh provinces, respectively.

Detailed explanation-5: -The correct answer is Harappa. Harappa is the earliest city discovered in India was Harappa. It was excavated in 1921 in the Punjab province of British India. After the excavation of Harappa as the first site, the Indus Valley Civilisation is also known as Harappan Civilisation hereafter.