Hill States of India
The Hill States of India were princely states lying in the northern border regions of the British Indian Empire. History 

During the colonial Raj period, two groups of princely states in direct relations with the Province of British Punjab became part of the British Indian Empire later than most of the former Mughal Empire, in the context of two wars and an uprising. For its princely rulers the informal term Hill Rajas has been coined. It does not apply to other native hill country princes such as the Rawat of Rajgarh. After the independence and split-up of British India, the Hill States acceded to the new Dominion of India and were later divided between India's constituent states of Punjab (proper), Haryana and Himachal Pradesh. Simla Hills

28 princely states (including feudatory princes and zaildars) in the promontories of the western Himalaya were named after Shimla as the Simla Hill States. These states were ruled mainly by Hindu Rajputs. Three quarters of the about , on both sides of the Sutlej river, was the territory of the Raja (earlier Rana) of Bashahr. The direct tributaries of Bashahr were : 
 the Thakur of Khaneti 
 the Thakur of Delath
Initially both Khaneti and Delath were feudatory of Kumharsain. The other, all far smaller, princely states, including a few with some petty dependencies of their own, were further south, on the left bank of the Sutlej :
 
 the Rana (also styled as Rana Saheb) of Kumharsain. Tributaries of Kumharsain until 1815 were:
 the Rana of Balsan
 the Thakur of Madhan
 the Thakur of Bharauli
 the Thakur of Beja State
 the Rana of Bhaji /Bhajji
 a prince of Bhagat
 the Raja of Bilaspur (formerly Kahlur/Kehloor), entitled to an 11-guns salute
 the Rana of Darkoti
 the Rana (Shri) of Dhami
 the Raja (formerly Rana) of Jubbal, which had two tributaries:
 the Thakur (sahib) of Dhadi State, initially tributary to Tharoch, then to Bashahr and finally in 1896 to Jubbal. (title?) Rawin = Rawingarh
 the Raja (formerly Rana) of Keonthal, where the feudal pyramid included five zaildars (jagirdars collecting a special tax) :
 a Jagirdar Gundh
 a Jagirdar Madhan = Kiari
 the Rana Sahib of Koti (since 1815) 
 the Thakur Saheb (also styled as Rana) of Ratesh (popularly known as Kot, 'fortress') 
 the Rana of Theog
 the Thakur of Kunihar
 the Rana of Kuthar
 the Thakur of Mahlog
 the Rana of Mangal
 the Raja of Nalagarh
  the Thakur (or Rai Mian) of Sangri State
 the Thakur (originally titled Rana up to the occupation by the Gurkhas; Thakurs from 1815 to 1929) of Tharoch = Tiroch 

NB - For various of the entities above, the authentic title of the chieftain is missing. While some of the lowest ranking may have had  none, for the princes that can merely be due to insufficient sources availableThe princely states of the Simla Hills all ultimately became part of the modern Indian state of Himachal Pradesh. States of the Punjab Hills 
Some nearby Hindu and Sikh states include :
 the Maharaja of Kangra, 
 the Raja (Saheb) of Chamba, entitled to an 11 gun salute
 the Raja of Mandi, 
 the Raja of Suket, 
 the Raja of Siba, no salute, as Siba was not fully part of the British Indian Empire, only Siba Jagir (Jagir of Mian Devi Singh) up to Kotla. etc. 