The tunnel was being dug from the Pakistani side along the international border and officials recovered "war-like" stores in the Arnia sector.
The intense shelling from across the border also prompted the authorities to suspend class work in nearly half a dozen government-run schools falling within the firing range in Poonch district.
Firing mortar shells and using automatic weapons, Pakistani troops targeted civilian areas and forward security posts along the International Border and Line of Control in Jammu, Kathua, Poonch and Rajouri districts of Jammu and Kashmir.
"We are the people, especially in the Kashmir Valley, who upheld the tricolour high over the years at the cost of thousands of our workers who were martyred," Mufti told reporters in Jammu at the end of her five-day visit to Jammu -- her first after release from over one-year-long detention under the Pubic Safety Act (PSA).
The mortar shelling and small arms firing from across the border was intense in Shahpur, Kirni and Qasba sectors along the LoC in Poonch district.
Prime Minister Manmohan Singh is expected to announce a package for border districts of Jammu and Kashmir when he travels there on Tuesday along with United Progressive Alliance Chairperson Sonia Gandhi on a two-day visit.
The announcement by India and Pakistan to strictly observe all agreements on ceasefire along the Line of Control (LoC) and other sectors has rekindled hope for a peaceful future among border residents in Jammu and Kashmir who have been living under constant fear of firing and shelling.
There was no report of any casualty in the latest ceasefire violation which came a day after a personnel of the Indian Army was killed and three others including two women were injured in separate ceasefire violations by Pakistan in Rajouri and Poonch districts.
In a statement, the ministry of external affairs said India also condemned, in the strongest terms, the "deliberate targeting" of innocent civilians by Pakistani forces, saying it was highly deplorable that Pakistan chose a festive occasion in India to disrupt peace and perpetrate violence in Jammu and Kashmir through coordinated firing along the the LoC.
'We have highlighted our concerns at unprovoked ceasefire violations by Pakistan forces, including in support of cross border terrorist infiltration, and targeting of Indian civilians and border posts by them'
'When the Indian Army carries out anti-infiltration ops, the Pakistan army willy-nilly will get involved in some way. So, it is imperative for the Pakistan army to act against militant groups.'
Union Health Minister Ghulam Nabi Azad Thursday advocated shifting border residents of Samba district to safer places in view of travails they had to face during the recent heavy cross-border firing and shelling.He was on an extensive visit to border areas of Samba district to assess the situation arisen due to recent firing from Pakistan.
Pakistani troops violated the ceasefire on Wednesday by resorting to mortar shelling and firing along the Line of Control in Poonch district.
This is the first time the government sources have confirmed that artillery fire was indeed used by the Army to launch a massive assault against Pakistan.
How will India respond to an attack which keeps haemorrhaging India but stays below the threshold of tolerance?
The major ceasefire violations took place on 3, 4 and 5 October along the Line of Control in Jammu region.
The cross-border firing was severely affecting the mental health of those residing in border areas that witness death and destruction.
Phantom FDI refers to investments that pass through shell companies that have no real business activities and are tailor-made to cut tax liabilities.
The 27-second video was released a day after it claimed to have killed five Indian soldiers while retaliating to India's "unprovoked ceasefire violation" in Tatta Pani sector along the LoC.
The killing of Naik Rajib Thapa, 34, raised the death toll in the cross-border firing in the past week to four -- three soldiers and one civilian.
In yet another ceasefire violation, Pakistan troops opened unprovoked firing on Indian posts along the international border in Jammu district on Friday morning.
The Border Security Force on Tuesday lodged a strong protest with the Pak Rangers over its "unprovoked" cross-border firing which killed one civilian and injured 14 in Jammu and Kashmir over past few days and warned that such acts or any other misadventure will not be tolerated at any cost.
Three Pakistani soldiers were killed and another three injured when North Aatlantic Treaty Organisation helicopters shelled a Pakistani outpost in the restive tribal belt bordering Afghanistan on Thursday, in the fourth cross-border attack into Pakistan in less than a week.
Calm has returned to the International Border and its villages in the twin districts of Jammu and Samba after days of panic triggered by heavy cross border firing and shelling.
Pakistani army targeted Indian military positions along the Line of Control in Poonch area of Jammu and Kashmir on Monday, in yet another ceasefire violation.
The report covers 20 countries, including war-torn Syria, Afghanistan, and Yemen and also the situation in India, the Philippines and Nigeria.
The sector commanders of the BSF and Pakistan Rangers held a flag meeting, after a gap of about seven months
Pakistani troops violated the ceasefire on Sunday along the Line of Control in Poonch district of Jammu and Kashmir but there was no casualty.
Constable Devender Singh was hit by a stray bullet through the loophole of his picket and could not survive the injury.
"The 2003 ceasefire was being violated by Pakistan. After all what is terrorism -- you train people, you smuggle them in. Today, de facto violation has become de jure violation," he told NDTV.
Noting that ceasefire violations by Pakistan have increased, Defence Minister Arun Jaitley on Saturday said Indian security forces are responding effectively to protect the country's interests.
Foreign Office spokesperson tweeted that India violated the ceasefire agreement in Tandar, Sabzkot, Khuiratta, Baron, Bagsar and Khanjar areas.
When asked to stop, the intruders fired on BSF troops who retaliated in self-defence. Subsequently, five intruders were shot dead, a BSF officer said.
After India carried out a daring surgical strike and took out terrorists in Pakistan-occupied Kashmir in response to the Uri attack in which 19 soldiers were killed, Border Security Force and army personnel are on full alert all along the 198-kilometre long international border and 744-km long Line of Control, to thwart any 'mischief' by Islamabad.
After nine days of heavy firing and mortar shelling from across the border, firing de-escalated along the 192-km long border in Jammu frontier overnight with Pakistan opening fire on four border out posts in Kathua district.
A large population was forced out of their homes due to heavy shelling and firing.
When Pakistan Prime Minister Nawaz Sharif was meeting his Indian counterpart for ice-breaking talks in Russia, back home his confidante and Finance Minister Ishaq Dar warned India of a "befitting response" in case of any aggression.
Amid escalation of cross-border firing in Jammu and Kashmir, top military officials of India and Pakistan on Tuesday discussed the ceasefire violations along the Line of Control and International Border but failed to address the issue.
Many border residents say that they have been witnessing death closely since the repeated ceasefire violations by Pakistan.
The ceasefire violation comes after nearly seven months as last such incident took place on September 18, 2015 in the Balakote sector of Poonch district.