Complex sentence: Jamnagar railway station was owned by Jamnagar & Dwarka Railway during Princely rule.Rajkot-Jamnagar line was opened by 1897 and Jamnagar-Okha section was opened in 1922 by Jamnagar & Dwaraka Railway.
Split into simpler sentences: Jamnagar railway station was owned by Jamnagar & Dwarka Railway during Princely rule. The Rajkot-Jamnagar line was opened by 1897 and the Jamnagar-Okha section was opened in 1922 by Jamnagar & Dwaraka Railway.