The nine forts around Davangere and Chitradurga and as always the map on top marks the forts I could locate on Google Maps in blue and those I could not, in red.
- Chitradurga – 14.2097243, 76.394248
- Uchangidurga – 14.5608847,76.0482967
- Fortification adjacent to Uchangidurga – 14.5475198, 76.0389894
- Uchchangipura – 14.6020803,76.1523074
- Kanakuppa – 14.5528056,76.2886763
- Arani – 14.6045565,75.8034378
- Angargatti – 14.351689,75.5197218
- Shakara/Shyakar/Hanamanth Goudana Kote – 14.8662071,75.7054889
- Savanur – 14.9761499,75.335505
There is a fort wall on the south of the town and and south east along the lake. Also refer to the book The Nawabs of Savanur By Krishnaji Nageshrao Chitnis.
- Bankapur – 14.9236995, 75.2527642
- Channagiri
For more info on some of these forts, see these two pages.
Update: Added Channagiri to the list and updated the map based on information from Siddeshwar
Udpate: Added more info about the fort at Shakara with the name of the fort, i.e. Hanamanth Goudana Kote. Thanks to Siddeshwar for pointing out.
Over 1300 Forts Documented 
Channagiri Fort (14°1’19″N 75°55’17″E) should be in this list. Distance between Davangere and Channagiri is about 80 kilometers.
Thanks! I’ve updated the post.
Got the information finally atleast here, for which I was searching on Google from so many days. Thank you very much for such an excellent and consolidated information about forts near Davanagere