They said the incident occurred around 4 am when a 150-metre-long portion of the four-and-a-half-kilometer-long tunnel collapsed.
Asthana is the 27th chief of the force and is expected to hold office till July next year, his scheduled date for retirement from service.
Chinese troops made a fresh attempt to violate the border with India in Chumar area in Ladakh on Sunday and retreated only after the Indo-Tibetan Border Police and the army jawans formed a human wall to block their incursion bid.
The bus was returning from the Gangotri shrine.
Why can't the Indian government propose to the Chinese a corridor circumambulating the Holy Mountain where people from both sides could perform the yatra again? asks Claude Arpi.
The Army on Sunday deployed four columns and two medical teams in the rescue of people affected by a massive flood in the Dhauli Ganga river after a part of the Nanda Devi glacier broke off at Joshimath in Chamoli district of Uttarakhand, officials said.
Singh also said that Indian security forces were capable of defending the country's territories.
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Three battalions of the Border Security Force comprising more than 3,000 personnel will move across the border from Odisha to Chhattisgarh and an equal number of Indo-Tibetan Border Police units will further move into the Naxal stronghold of Abujhmad as part of a strategy to intensify anti-Maoist operations in their last bastions, official sources said.
The landmark move comes days after the government approved women fighter pilots for the Indian Air Force.
In a candid admission, the Indo Tibetan Police Force on Tuesday said Chinese soldiers guarding the border are better equipped than its own men and that there have been more than 140 border violations by the troops of the communist nation. The ITBP top brass has already informed the government about the developments and proposals for enhancing the force's equipment and supporting infrastructure are under 'active' consideration.
In addition to educating Delhiites and holding a joint awareness campaign against cyber frauds, Truecaller will also display official numbers of the Delhi police representatives on the app's government directory services.
The stringent and rare action against Commandant Rajesh Kumar Tomar was confirmed by the ITBP director general after a general force court trial was held against him under the ITBP Force Act of 1992.
According to the proposal, the MHA is working on a new 'model' where the burden of internal security duties, including conduct of elections, will be largely borne by the country's largest paramilitary force, the CRPF.
Tharoor said the Congress should stand up for its foundational principles.
The incident regarding Chinese troops entering the border district of Chamoli in Uttarakhand is that of "transgression" and not "incursion", the government said on Thursdy.
The prime minister is presently at one of the forward locations in Nimu and is interacting with personnel of the Army, Air Force and Indo-Tibetan Border Police, official sources said.
There are 176 border posts along the India-China border at present.
The death toll in the avalanche triggered by the bursting of a glacier in Chamoli has gone up to 58 as a total of 11 bodies are recovered from the Tapovan tunnel, whereas 146 people are still missing, said Uttarakhand Police on Tuesday.
Ten more bodies were recovered from the site of an avalanche in Uttarkashi, taking the death toll to 26, the Nehru Institute of Mountaineering said on Friday.
A naxal commander, who was carrying a reward of Rs 2.10 lakh on his head, was killed in a fierce gun-battle with the security personnel in Rajnandgaon district of Chhattisgarh on Saturday afternoon, the police said.
Aparna Kumar fought pneumonia and extreme weather conditions to make history.
The Bharatiya Janata Party in Arunachal Pradesh has urged the union home affairs ministry to pay special attention and expedite 'action-oriented' measures to build defence infrastructure in the state.
The rain ebbed in some places in north India and pelted down in others on Tuesday, with at least seven more people dead and hundreds stranded as raging waters gushed through villages, towns and fields -- from the desert state of Rajasthan to the hills of Himachal Pradesh.
Army chief General Bipin Rawat had visited Jammu and Kashmir on Thursday to review the operational preparedness of the troops deployed in the state.
The 10,200-bed facility was inaugurated on July 5 last year and was operated by the Indo-Tibetan Border Police. The centre was 1,700 feet long and 700 feet wide -- roughly the size of 20 football fields -- and had 200 enclosures with 50 beds each.
Union Minister of State for Home Affairs Kiren Rijiju on Tuesday denied any incursion by China's People's Liberation Army in Taksing area of Arunachal Pradesh in recent times.
At least 12 companies of Central Armed Police Forces (CAPF) reached West Bengal on Saturday morning as the state prepares to go to elections, officials said.
The flood situation continued to be critical in Arunachal Pradesh.
"We saw with our own eyes and I can say 99 per cent that those attackers were from Pakistani military and used special tactics while conducting their operation," Sayed Kamal Sadat, police chief of the Balkh province.
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The state government, in its original suit, has said the extension of the territorial jurisdiction of the BSF encroaches upon the constitutional jurisdiction of the state.
Four white-coloured SUVs, two Toyota Fortuner and as many Ford Endeavour, with a price tag of around Rs 25 lakh each, have been deployed by the border guarding force at some of its forward locations.
The total capacity of these 32 earmarked hospitals is 1,890 beds, a senior official said.
Uttarakhand Chief Minister Pushkar Singh Dhami on Monday visited the Silkyara-Barkot tunnel site for a review of the rescue operations being carried out there to evacuate 40 labourers trapped inside since Sunday morning following its partial collapse.
A search is on for another body as there were eight members in the team that had gone missing on way to the 17,800-foot-high peak, Nimbadia said.
What happened in Uttarakhand is a national tragedy. Why couldn't Dr Manmohan Singh announce that he was forming an Uttarakhand Relief and Rehabilitation Committee, with himself as chairman but inviting Narendra Modi to become the deputy chairman, asks T V R Shenoy.
It is learnt that the consulate in Mazar-e-Sharif will continue to operate through the local staff members.
The officials said the jawan was the youngest to die among the CAPFs. All other fatalities were over 45 years, they said.
The first vote of the country was cast by Deputy Inspector General Sudhakar Natarajan, head of ATS ITBP.