What was the main staple cereal crop ('Yava') cultivated during the early Rigvedic period in India?

In Ancient Indian Statecraft, Kautilya's 'Rajamandala' theory primarily deals with:

The First Buddhist Council was held at ______.

Which ancient Indian text contains references indicating that population counts or census-like records were maintained in ancient India?

Who among the following was NOT a ruler of the Later Guptas of Magadha?

Who among the following was the first prominent ruler of the Kushana dynasty?

The Hathigumpha inscription is the main source of information about the ruler Kharavela of which ancient kingdom?

Which specific construction material prominently characterizes the ancient ruins of the Nalanda University complex?

The ancient text 'Indica' was written by: