Assam floods: Dikhow River overflow halts trains in Upper Assam
Synopsis
Floodwaters from the Dikhow River have knocked out train services across Upper Assam, stranding routes from Dibrugarh and Tinsukia as the state's flood toll climbs to five dead and over 57,100 affected — more than double the figure from just a day earlier. The Indian Army's 'Operation Jal Rahat' is now active across seven eastern Assam districts.
Key Takeaways
The Northeast Frontier Railway (NFR) suspended train services on the Simaluguri–Namtiali and Simaluguri–Selenghat sections on 20 July after Dikhow River floodwaters submerged tracks.
Long-distance trains from Dibrugarh and Tinsukia have been diverted via the Rangiya–Rangapara route, with delays expected.
More than 57,100 people are now affected across 7 districts — up from 24,000 the previous day, according to ASDMA .
The flood-related death toll in Assam this year has risen to five , with one fatality reported in Sivasagar district .
Charaideo is the worst-affected district with nearly 24,000 people impacted; Dhemaji follows with over 22,000 .
The Indian Army has launched 'Operation Jal Rahat' to support rescue and relief efforts across eastern Assam.
Train services on key railway routes in Upper Assam were suspended on Monday, 20 July after floodwaters from the overflowing Dikhow River submerged tracks and station premises at Simaluguri in Sivasagar district, officials said. The disruption has compounded a worsening flood crisis that has now affected more than 57,100 people across seven districts of Assam.
Rail Operations Suspended
The Northeast Frontier Railway (NFR) said incessant rainfall in upstream catchment areas caused a sharp rise in the Dikhow River, inundating the Simaluguri station yard, railway colony, and adjoining tracks. Rail traffic has been suspended on the Simaluguri–Namtiali and Simaluguri–Selenghat sections until water levels recede sufficiently to allow safe operations.
Long-distance services originating from Dibrugarh and Tinsukia have been diverted via the Rangiya–Rangapara route to maintain some connectivity, though significant delays are expected. Several passenger and local trains in the affected sections have been either cancelled or short-terminated.
Restoration Efforts Underway
The NFR has mobilised emergency response teams and deployed railway personnel alongside restoration equipment at the affected sites. However, officials cautioned that repair work can begin only after floodwaters recede enough to permit a proper damage assessment. Senior officials are continuously monitoring the situation, with teams on standby to restore normal operations at the earliest possible opportunity.
Flood Situation Across Assam
The railway disruption mirrors a broader humanitarian crisis unfolding across eastern Assam. According to the Assam State Disaster Management Authority (ASDMA), one person has been reported dead in Sivasagar district, taking the state's flood-related death toll this year to five.
The number of people affected has surged sharply — from approximately 24,000 recorded a day earlier to more than 57,100 across Charaideo, Dhemaji, Dibrugarh, Jorhat, Sivasagar, Tinsukia, and Udalguri districts. Charaideo remains the worst-affected district with nearly 24,000 people impacted, followed by Dhemaji with over 22,000 residents affected. Dibrugarh has reported more than 4,000 affected people.
Army Launches Operation Jal Rahat
The Indian Army has launched 'Operation Jal Rahat' to support the Assam government in large-scale rescue and relief operations across the flood-hit districts of eastern Assam. The operation signals the scale of the crisis, with persistent rainfall offering little respite and river levels remaining dangerously elevated.
This is not the first time Assam's rail infrastructure has been crippled by seasonal floods — the state's low-lying river valleys and aging embankments make it acutely vulnerable each monsoon. With no let-up in rainfall forecast imminently, the affected population and disrupted services are likely to grow before conditions improve.
Point of View
000 to over 57,100 in a single day — underscores how rapidly Assam's annual flood crisis can escalate, yet the state's disaster preparedness cycle remains largely reactive. The NFR's inability to commence repairs until waters recede reflects a structural gap: railway infrastructure in flood-prone Assam has not been meaningfully flood-proofed despite repeated annual disruptions. The Army's 'Operation Jal Rahat' is a necessary intervention, but its activation signals that civilian relief machinery has already been overwhelmed. Until embankment reinforcement and early-warning systems are treated as year-round priorities rather than post-monsoon talking points, Upper Assam's communities and connectivity will remain hostage to the same cycle every July.
NationPress
21 Jul 2026
Frequently Asked Questions
Why have train services been suspended in Upper Assam?
Train services have been suspended because floodwaters from the overflowing Dikhow River submerged railway tracks and station premises at Simaluguri in Sivasagar district, making train movement unsafe. The Northeast Frontier Railway suspended operations on the Simaluguri–Namtiali and Simaluguri–Selenghat sections on 20 July until water levels recede.
Which trains are affected and how are they being rerouted?
Long-distance trains originating from Dibrugarh and Tinsukia are among those affected. They are being diverted via the Rangiya–Rangapara route to maintain connectivity, though significant delays are expected. Several passenger and local trains have been cancelled or short-terminated.
How many people have been affected by the Assam floods?
According to ASDMA, more than 57,100 people have been affected across seven districts — Charaideo, Dhemaji, Dibrugarh, Jorhat, Sivasagar, Tinsukia, and Udalguri. This is more than double the approximately 24,000 affected persons recorded just a day earlier.
What is Operation Jal Rahat?
Operation Jal Rahat is a large-scale rescue and relief operation launched by the Indian Army to support the Assam government in responding to the worsening floods across eastern Assam. It has been activated across seven flood-hit districts.
When will train services resume in the affected sections?
The NFR has not given a specific timeline for resumption. Officials said repair work can begin only after floodwaters recede enough to allow a proper assessment of track and infrastructure damage. The situation is being monitored continuously by senior railway officials.
