With reference to forced labour (Vishti) in India during the Gupta period, which one of the following statements is correct?
Explanation
*Vishti* was regarded as a legitimate source of state revenue and a form of "tax in kind" where subjects contributed physical labor to the king instead of cash or goods. Option (c) is incorrect because *Vishti* was essentially unpaid forced labor, making the provision of weekly wages contradictory to its very definition. The core concept tested is the administrative and fiscal system of the Gupta Empire, specifically the extraction of labor as a resource for the state.