Bahadur brave royal person
Bhanwar title of a Rajput Noble whose grandfather is still alive
durbar or darbar
the court; occassionally applied to the Ruler himself
dspl decessedit sine prole legitimatis i.e. died without legitimate issue
dspm decessedit sine prole masculine i.e. died without male issue
dvpsp decessedit vita patris sine prole i.e. died in the lifetime of his father without issue
F.R.A.S. Fellow, Royal Astronomical Society
F.R.M.S. Fellow, Royal Meteorological Society
F.R.C.I. Fellow, Royal Colonial Institute and Society of Arts
F.R.G.S. Fellow, Royal Geographical Society
gaddi literally cushion, meaning the throne or rulership
H.E.H. His Exalted Highness, title created for the Nizam of Hyderabad
H.H. His (or Her) Highness, title granted to rulers of salute states or their wives
Istimrardar a Persian word meaning int jam, first used by the Mughals for estate holders of Ajmer in Rajasthan. see also Thikanedar
Jagir a medieval system of assigning land and its rent as annuity to state functionaries. Jagir is a Persian term meaning land assigned. Because of tardy communication and a barter economy, the Muslim rulers of Bengal, and also of India, had evolved a system of paying their officers, particularly those who were stationed in remote places of the kingdom in the form of assignments of land, the rentals of which were treated as their remuneration and also paid for the cost of their establishments. With the departure or death of the incumbent, the state normally resumed the jagir and settled it with the next incumbent. Besides the regular jagirs for officialdom the rulers also granted jagir tenures to favoured state grandees for their maintenance and these were enjoyed either for life or were hereditary.
Jagir Bonds compensation given to Jagirdars at Independence
ji suffix  for elders or important people like "Gandhi"ji (in hindi/urdu)
Kanwar title for a son of a living Rajput Noble
Khanzada son of a Khan
medieval practice of honouring people with a ceremonial robe. Khilat is an Arabic word meaning dress, particularly of the people of rank and status. The Mughals made it an aristocratic institution by way of recognising ceremoniously, loyal and efficient subjects with robes of honour.
maha great, used in front of titles, e.g. Maharaja = great king
Maharaj title used by collateral descendants of a princely state, particularly in Rajasthan
Mehtar title of the ruler of Chitral state
Mian title used predominantly for the non ruling members in the hill states, has fallen out of favour
throne (Muslim)
Nawabzada son of a Nawab
Nizam title of the ruler of Hyderabad, used with the style of H.E.H. = His Exalted Highness
Pant Pratinidhi  equivalent to wazir
A string of villages made a pargana under the sultans. For administrative convenience the parganas were grouped into dasturs or areas having some common customs and usage as regards rights and liabilities of various interests in land.
Patti villages a number of villages grouped together for revenue purposes
Privy Purse specifically it was money the Ruling Princes received from the government after giving up their State
'quo vide' or 'which see', meaning there's further information elsewhere, and it's inviting you to search it out if interested
Rajmata Queen mother
Raj Rana King
Raja King cf.Rani
Rana King
Rao King
Rawal King
Rawat King
an official term used in Mughal administration expressing the authority, original or delegated, to confer a privilege, make a grant, give diploma and issue a charter or a patent. It is also a state-recognised document granting on an individual or institution titles, offices, privileges, etc. Normally a sanad granted by the emperor who requires obedience from all and sundry was called a farman.
Sirdar respectful address for a Sikh or a noble in Rajasthan
Sawai literally means One and a Quarter
Sahib one can use it to show respect
Shahzada son of a Shah
Shri equivalent to Mister
sine prole, Latin for "without issue"
sirayat Noble
Taluq / Taluqdar  
Thakur title for a Rajput Noble whose father is dead
Thikana a grant of land, the revenue of which belonged to the grantee, but not the land itself cf. jagir
holder of a Thikana
Tikka Heir Apparent (predominantly in the Hill States), also Tikkaraja and Tikka Sahib
umrao Noble
vikram samvat
dating system in use in India, being 56 or 57 years after the western date, e.g. Magh Budi 10th, VS 1374 is equivalent to 23rd January 1317AD
Yuvaraj Heir Apparent (Hindu) lit. "young king"
Zamindar a land holder or landlord