Rescue operations continued at Tapovan tunnel in Uttarakhand's Chamoli following glacier burst.
Drilling operation started by rescue teams at 2:00 am today to peep into tunnel 12 to 13 meters below.
A flash flood triggered due to glacier burst on February 07 in Chamoli district.
Around 32 people have died in the incident so far, and more than 170 are still missing.
