Zone Wise Distribution aisa hota agar Partition na hota toh.
1. North East Frontier Railway(NEFR):- Assam, Arunachal, Nagaland, Tripura
Sylhet & Cachhar, Kaptai, Noakhali, Mizoram & Manipur. (Sylhet & Cachhar would had been a separate State, Kaptai is Whole Chittagong Division Area of Current Bangladesh).
2. Eastern Railway:- Current Dhaka, Faridpur, Rajshahi, Parbatipur, Rangpur, Mymensingh & Jessore-Khulna Divisions of Bangladesh +...
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Eastern Districts of West Bengal.
3. North East Central Railways(NECR):- North Bengal Districts of WB + 50% of NFR Katihar Division.
3. ECR : - Current ECR + 50 % of NFR Katihar Division.
4. SER : - No change.
5. ECoR :- No change
6. SCoR : - No change.
7. NER : - No change.
8. Northern Railways: - Current NR except Firozpur Division.
9. North Western Railways:- Current NWR + 50 % of Balochistan Region of Current Pakistan.
10. North West Frontier Railways(NWFR):- Current Firozpur Division of NR + All of Jammu & Kashmir Region + Whole of Current Punjab & Khyber Regions of Pakistan.
11. SECR : - No change; 12 CR : - No change; 13. SCR :- No change;
14 SR : - No change; 15. SWR : - No change; 16. KRCL : - No change;
17. WR : - Current WR + Whole Sindh + 50 % of Balochistan Region of Current Pakistan. 18. WCR: - No change.

Indian Railways would had 2 more Zones namely
1. North East Central Railways(NECR):- North Bengal Districts of WB + 50% of NFR Katihar Division; & 2. North West Frontier Railways(NWFR):- Current Firozpur Division of NR + All of Jammu & Kashmir Region + Whole of Current Punjab & Khyber Regions of Pakistan.