Hotel ParagonvsHotel O2 Oxygen
Both hotels are endorsed by writers. Overall, Hotel Paragon ranks slightly higher than O2 Hotel. Hotel Paragon scores 73 with accolades from 2 sources such as Rough Guide, Lonely Planet.
Hotel Paragon
 Rough Guide
 Lonely Planet
Stuart Lane, Kolkata, India
From $0/night
 "This has long been a popular traveller haunt, offering dark and dingy rooms downstairs, and better ones...around the popular rooftop courtyard." 
 "Coffin-box rooms are as spirit-crushing as you’d expect for the price and the jam-packed dorms are windowless." Full review
Hotel O2 Oxygen
 Lonely Planet
Ramkrishna Pally, VIP Road, Kaikhali, Kolkata 700052, India
From $32/night
- Bar/Lounge
 - Free Internet
 - Room Service
 - Free Breakfast
 - Laundry Service
 - Concierge
 
 "Of the larger VIP Road options, the two closely located O2 (oh-two) hotels are about the closest to the terminals."