Samudra Gupta
Retired ADEN Etawah
North Central Railway
Four decades building and maintaining the tracks that connect India — from mainline permanent way to complex yard remodeling, gauge conversion to ultrasonic testing.
Four decades on the track
Key milestones from a career spanning maintenance, construction, testing, and post-retirement advisory.
Samudra Gupta joined Indian Railways on 20 July 1983 in Gwalior. Over 38 years, he served across Nagpur, Jhansi, Gwalior, and Prayagraj divisions — maintaining A-route tracks, building new BG links, conducting USFD testing, and coordinating engineering operations.
After retiring as ADEN Etawah in 2021, he continued with RVNL overseeing the Jhansi-Kanpur doubling, then as Resident Engineer, and most recently as Sector Expert under PSSA.
Deep knowledge across track engineering
Permanent Way Maintenance
24 years on A-route sections across four divisions.
Points & Crossings
All turnout types — OR, TWS, 1:8.5 to 1:20.
Construction & Doubling
13 years of new BG links, gauge conversion, electrification, and doubling.
Yard Remodeling
Major yard remodeling and new installation works.
USFD Rail Testing
3.5 years of ultrasonic flaw detection across Jhansi Division.
Curves & Alignment
Speed calculations, curve realignment, grade compensation.
Key works across four decades
For track personnel
Quick reference tools and data tables for field use.
Crossover Length Calculator
O.L. (SRJ to SRJ) = X + 2A, where X = D × crossing number
Turnout Quick Reference
BG on PSC Sleepers with CMS Crossing
| Type | SRJ-TNC | A (mm) | ANC 52kg | ANC 60kg | Use |
|---|---|---|---|---|---|
| 1:8.5 | 26,295 | 12,025 | 132 | 141 | Goods yards, sidings |
| 1:12 | 37,100 | 16,989 | 186 | 198 | Loop lines, main line turnouts |
| 1:16 | 47,764 | 20,970 | 248 | 264 | High speed turnouts |
| 1:20 | 59,330 | 25,850 | 310 | 330 | Highest speed, passenger lines |