The capital city of Telangana is:

Karimnagar
Warangal
Hyderabad
Nizamabad

The capital city of Telangana is Hyderabad. It is the largest city in the state and the sixth largest city in India. Hyderabad is a major center for education, technology, and culture. It is also home to a number of historical and cultural landmarks, including the Charminar, Golconda Fort, and the Qutb Shahi Tombs.

Karimnagar is a city in the Karimnagar district of Telangana, India. It is the headquarters of the Karimnagar district and the Karimnagar revenue division. Karimnagar is located on the banks of the Manair River, about 200 kilometers (120 mi) north of Hyderabad. The city has a population of about 1.2 million people.

Warangal is a city in the Warangal district of Telangana, India. It is the headquarters of the Warangal district and the Warangal revenue division. Warangal is located on the banks of the Godavari River, about 150 kilometers (93 mi) north of Hyderabad. The city has a population of about 800,000 people.

Nizamabad is a city in the Nizamabad district of Telangana, India. It is the headquarters of the Nizamabad district and the Nizamabad revenue division. Nizamabad is located on the banks of the Manair River, about 200 kilometers (120 mi) north of Hyderabad. The city has a population of about 300,000 people.

The correct answer is C. Hyderabad.