Hyderabad was founded by the sultans of Golconda. The old fortress town of Golconda had proved inadequate as the kingdom’s capital, and so the fifth of the Quṭb Shahs, built a new city called Hyderabad on the east bank of the Musi River, a short distance from old Golconda. The Chaminar, a grand architectural composition with open arches and four minarets, is regarded as the city´s most famous landmark. Arround it is a big bazaar where people sell many different things. So many people in one place can be quite different.
I also visited the Chowmahalla and Taj Falaknuma Palace. Such beautiful places with amazing view over the city from the Taj Palace.
Hyderabad is also considered the main pearl trading center in India and many people are engaged in the delicate art of drilling pearls.
India is a culturally interesting place with friendly people, but you should not be afraid of chaotic traffic, loud and dirty places.