About how many fundamentally different Indian scripts were used in the stamp issuing Indian Princely states?
There are total 9 scripts found on Indian Feudatory State postage stamps including Kalinga/Oriya script on Bamanda stamps.
(Languages: Ahirwati, Dhundhari, Harauti, Hindi, Malwi, Marathi, Mewati, Sanskritam)
States: Alwar, Barwani, Bashshar, Bhor, Bijawar, Bundi, Charkhari, Datiya, Dhar, Dungarpur, Haydarabad, Idar, Indaur, Jaypur, Jhalawar, Kishangarh, Nandgão, Nawanagar, Orchha, Punchh, Rajpipla, Saurashtra, Shahpura, Sirmaur & Vadhvan
States: Faridkot, Haydarabad, Jammu and Kashmir, Jhalawar & Punchh
States: Idar, Jasdan, Morbi, Nawanagar & Saurashtra
States: Kochchi & Tiruvitamkur
State: Jammu and Kashmir
States: Bashahar, Bhopal, Bijawar, Charkhari, Haydarabad, Jaypur, Jind & Lasbela