In an unprecedented incident, over three dozen armed Nepalese police personnel crossed the border and took shelter in frontier posts of Sashastra Seema Bal.
Amid unrest in Nepal, pilgrims from Tamil Nadu crossed the border for Kailash Mansarovar, and a wedding was held at the India-Nepal border.
The protesters shouted slogans such as KP Chor, Desh Chhod (K P Sharma Oli is a thief, quit the country), "Take action against corrupt leaders".
Tamil actor Ajith condemned the Pahalgam terror attack, expressing his heartbreak and offering prayers for the families of the victims.
An Indian national, Laagan Yadav, 45, has been taken into custody by the Nepal border police, they said. Sashastra Seema Bal (SSB) Director General (DG) Kumar Rajesh Chandra told PTI in Delhi that the incident took place around 8.40 am 'deep inside Nepalese territory'.
A massive avalanche on Friday struck Mount Everest killing at least 13 Nepalese Sherpa guides and injuring several others in the deadliest mountaineering accident on the world's highest peak.
Nepal's border guarding force on Saturday released the Indian national who was detained for allegedly trying to snatch a weapon from one of their personnel during an altercation which sparked tension on the Indo-Nepal border along Bihar's Sitamarhi district, an official said.
Nepal on Sunday briefly detained 13 personnel of India's SSB, who allegedly entered the country with arms while chasing suspected smugglers near Jhapa district, bordering Bihar.
A 19-year-old Indian was killed as Nepal police opened fire on people demonstrating against the new Constitution near the Indo-Nepal border, hours after security forces baton-charged Madhesi protesters and evicted them from a key bridge in the area in a pre-dawn swoop.
A team of Nepalese rescuers pulled out Lama, a resident of Nuwakot, after a five hour rescue operation.
A small plane carrying 23 people, including two foreigners, on Wednesday went missing in a mountainous area in Nepal amid poor visibility.
Nepalese rescuers resumed their search on Monday for four persons still missing after a passenger plane with 72 people, including five Indians, crashed into a river gorge while landing at the newly-opened airport in the resort city of Pokhara, killing at least 68 people onboard.
The death toll in the worst-ever mountaineering accident on Mount Everest on Saturday rose to 13 as rescuers dug out a body buried under piles of snow, a day after a massive avalanche struck the world's highest peak killing 12 Nepalese Sherpa guides.
'Nanda Devi is not an easy mountain to climb.'