Call us for Counseling - 9580048004, For Support - 8860807050.  

Tags Current Affairs

Kavach technology

Date: 07 March 2022 Tags: Miscellaneous


The indigenously developed Kavach Automatic Train Protection System has been successfully tested in presence of Union Railway Minister.



The collision between trains has claimed many innocent lives, especially during winters when signals are not clearly visible.



The Kavach protection system has been under development since 2012 under the name of Train Collision Avoidance System (TCAS).



  • It consists of a set of electronic devices and Radio Frequency Identification devices installed on locomotives, railway tracks and signaling system.

  • They communicate with each other using ultra high radio frequencies that can control brakes of trains and also alert the loco pilots.

  • It includes European Train Protection and Warning System, and the indigenous Anti Collision Device. 



  • It passes a trigger known as Signal Passed at Danger (SPAD), when the loco pilot skips a signal.

  • It also relays signals continuously for loco pilots to see, especially during dense fogs.



  • Collision between trains occurs mainly due to jumping of signal by loco pilot. This can be avoided under Kavach.

  • The system adheres to the highest level of safety and reliability standard called Safety Integrity Level 4.


Future aspects

  • India wants the system to be exportable. Changes are being planned to make it compatible with 4G Long Term Evolution (LTE) technology that currently exists across the world.

  • It has the potential to become the world’s cheapest Automatic Train Protection System, with its cost being a fourth of the cost of existing European systems.


Expansion in India

  • It is currently deployed on over 1,098 km and 65 locomotives in ongoing projects of the South Central Railway.

  • It will be expanded on 3000 km of the Delhi-Mumbai and Delhi-Howrah corridors where the tracks are being upgraded.

  • The High Density Network (HDN) and Highly Utilized Network (HUN) of on the Golden Quadrilateral have been part of future plans.

Notice (8): Undefined variable: quizpole [ROOT/plugins/Studyiq/src/Template/Pages/tagdetails.ctp, line 161]