The Rail Vikas Nigam Limited (RVNL), a railway PSU, has been entrusted with the task of undertaking the final survey for rail connectivity to Chardham - Gangotri, Yamunotri, Badrinath and Kedarnath - through Dehradun and Karanprayag.
Earlier, RVNL had undertaken a reconnaissance engineering survey in 2014-15 and submitted a report in October 2015.
As per the reconnaissance survey, the total route length is 327 km and will cost Rs 43,292 crore.
As the alignment will pass through the rugged mountainous terrain of the mighty Himalayas, the Railways has to meet the challenges of rail construction.
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The existing rail heads or the nearest railway stations to the proposed Char Dham are Doiwala, Rishikesh and Karanprayag.
Railway Minister Suresh Prabhu shall lay the foundation stone for the final location survey for single broad gauge line in Badrinath on May 13.
The four dhams have their varied and distinctive elevation levels along with spiritual significance.
Kedarnath housing the shrine of Lord Shiva, is one of the 12 Jyotilingas at 3,583 metre height, while Badrinath housing the shrine of Lord Vishnu is at 3,133 metre height above sea level.
Besides pilgrims, a large number of foreign and domestic tourists throng the scenic state.
The ambitious project envisages bringing in a new era of safe and comfortable travel, said a senior Railway Ministry official.
These rail projects shall add momentum to the progress of the State by connecting far-flung areas besides boosting opportunities for tourism and economic development.