The correct answer is: C) Nalgonda
The Gadwal Samsthanam was a princely state in the Indian subcontinent that existed from the 16th century to 1948. It was located in the present-day Nalgonda district of Telangana. The capital of the state was Gadwal.
The Gadwal Samsthanam was founded by Pedda Komati Venkata Reddy in the 16th century. He was a feudatory of the Qutb Shahi dynasty of Golconda. The state reached its zenith under the rule of his grandson, Pedda Komati Venkata Krishna Reddy. He was a powerful and influential ruler who extended the boundaries of his state and built many temples and palaces.
The Gadwal Samsthanam was a vassal state of the Nizam of Hyderabad from the 18th century onwards. It remained under Nizami rule until 1948, when it was merged with the Indian Union.
The Gadwal Samsthanam was a significant political and cultural entity in the history of Telangana. It played an important role in the resistance against the Nizam of Hyderabad and in the Telangana movement.
The other options are incorrect because:
- Mahabubnagar is a district in Telangana, but the Gadwal Samsthanam was not located in this district.
- Warangal is a district in Telangana, but the Gadwal Samsthanam was not located in this district.
- Karimnagar is a district in Telangana, but the Gadwal Samsthanam was not located in this district.