Jurisdiction Of Chapters Of Eastern Region view map
| Chapter | Juridiction Area |
| Asansol | Asansol and its neighbourhood. |
| Assam (Guwahati) | State of Assam except upper Assam. |
| Bihar (Jamshedpur) | Jamshedpur and other areas of Singbhum District. |
| Bokaro | Bokaro Steel City and its neighbourhood |
| Dhanbad | District of Dhanbad. |
| Kolkata | Calcutta and other areas of West Bengal excepting the jurisdiction of Durgapur and Asansol Chapters. |
| Upper Assam | Jorhat, Sibsagar, Nazira, Lakawa, Gebhi, Moran |
| Durgapur | Durgapur and its neighbourhood |
| Patna | All districts of Patna, Tirhut and Bhagalpur Division of Bihar. |
| Ranchi | Chotanagpur Division except the jurisdiction of Bihar and Dhanbad Chapters. |