Prime Minister Narendra Modi on Monday spoke with Uttarakhand Chief Minister Pushkar Singh Dhami to take stock of the rescue operation to save 41 workers trapped in the Silkyara tunnel and stressed on the need to keep their morale up.
An international tunneling expert, Arnold Dix, arrived at the disaster site to review the rescue efforts, now in its ninth day.
Dix heads the Geneva-based International Tunneling and Underground Space Association.
