@syeddanishanwar these were titles with style of the ruler of the respective state. Each state had different ones. And I agree with @msabbasi sir they were not titled royalty. Each of these titles were hard - earned. Sharing titles of few rulers of great importance:
1. Maharana of Udaipur (Mewar):
His Highness Mahavir-Pratapi, Raghu-Kula-Bhushna, Maharajadhiraj Raj Rajeshwar, Surya-Vamsha-Chudamani, Mahi Mahindra Yavadarya Kula Kamaldhivakara Chhattis Rajkul Singar Sri Sri 108 Sri Hindupati Maharana (name) Singhji Sahib Sisodia Hindua Suraj.
2. Mir of Khairpur:
His Highness Aalijah Sarkar-e-Mo'allaa Mir (name) Khan Talpur, Wali-e-Mumlikat-e-Khudadad-e-Khairpur
3. Maharaja of Jaipur:
His Highness Saramad-i-Rajah-i-Hindustan Raj Rajendra Shri Maharajadhiraja Sawai (name) Singhji
4. Maharaja of Patiala:
Farzand-i-Khas-i-Daulat-i-Inglishia, Mansur-i-Zaman, Amir ul-Umara, Maharajadhiraja Raj Rajeshwar 108 Sri Maharaja-i-Rajgan, Maharaja (personal name) Singh, Mahendra Bahadur, Yadu Vansha Vatans Bhatti Kul Bushan
5. Maharaja of Jodhpur (Marwar):
Raj Rajeshwar Saramad-i-Rajha-i-Hindustan Maharajadhiraja Maharaja Shri (name) Singhji Sahib Bahadur
@msabbasi has mentioned H.E.H. the Nizam of Hyderabad and Berar titles. And here's a fact Nizam was only ruling prince with that unique style of His Exalted Highness.
Gen. H.E.H. Nizam Mir Sir Osman Ali Khan, G.C.S.I., G.B.E., Nizam of Hyderabad and Berar has written:
Tum Iftikhar-i-Dakhan Ho
Tumhen ho hind mein mumtaz Shahryar-i-Dakhan
You are the pride of the Deccan, the King of the Deccan;
Among the rulers of India, the only one that counts
Is the King of the Deccan.
Above two photographs of Mir Osman Ali Khan while later one is of Mir Sir Mahboob Ali Khan.