IUCr designated hotels are peppered within a 10 km radius around the conference venue with convenient shuttles at pre-designated hours (see http://www.iucr2017.org/accommodation/). But for those who prefer the road not taken, here is a list of older, iconic hotels in the city centre. Transportation to HICC would have to be by taxi though, at one’s own expense.
Taj Krishna: https://taj.tajhotels.com/en-in/taj-krishna-hyderabad/
ITC Kakatiya: https://www.itchotels.in/hotels/hyderabad/itckakatiya.html
Taj Deccan: https://vivanta.tajhotels.com/en-in/deccan/#!
Vivanta by Taj: https://vivanta.tajhotels.com/en-in/
Taj Banjara: https://gateway.tajhotels.com/en-in/taj-banjara/#
The Park: http://www.theparkhotels.com/hyderabad.html