CAT (Common Admission Test) is the premier all India management entrance exam conducted by IIMs

Well in 2015 Hyderabad was a center for the CAT exam so probably this year will also remain the same

CAT exam centers in 2015

Ahmedabad
Bangalore
Bhopal
Bhubaneswar
Chandigarh
Chennai
Cochin
Coimbatore
Dehradun
Durgapur
Faridabad
Ghaziabad
Greater Noida
Gurgaon
Guwahati
Hyderabad
Indore
Jaipur
Jammu
Jamshedpur
Kolkata
Kozhikode
Lucknow
Mumbai
Nagpur
Navi Mumbai
New Delhi
Noida
Patna
Pune
Raipur
Ranchi
Shillong
Siliguri
Surat
Trivandrum
Udaipur
Varanasi
Vijayawada
Vishakhapatnam