Suspected drones were observed along the International Border in Samba district of Jammu region on Monday, while armed forces downed a 'surveillance drone' in Punjab's Jalandhar district.
Security forces were engaging the suspected drones in Samba district, the Army said.
The drone activity along the borderline came barely hours after Prime Minister Narendra Modi's first address to the nation following Operation Sindoor and the meeting of the Directors General of Military Operations (DGMOs) of India and Pakistan.
The Army said the situation is calm and under full control.
"No enemy drones are being reported at present," it said.
The Army had earlier said that there was no need to be alarmed.
A small number of suspected drones have been observed near Samba in J&K. They are being engaged, it said.
In the backdrop of the situation, several areas witnessed blackouts in Samba, Kathua, Rajouri, and Jammu.
Lights were switched off at the cave shrine of Mata Vaishno Devi and along its track as a precautionary measure, sources said.
The latest hostilities began in the northern districts of Kupwara and Baramulla in the Kashmir Valley before spreading southwards to Rajouri, Poonch,
Akhnoor and the Pargwal sector along the International Border in Jammu district. The firing affected five border districts Baramulla, Kupwara, Poonch, Rajouri and Jammu.
The recent round of cross-border firing further undermined the ceasefire agreement reached in February 2021, which has largely been seen as ineffective due to Pakistan's frequent violations along the 740-km-long LoC.
Meanwhile, Jalandhar Deputy Commissioner Himanshu Aggarwal said, "I have been informed that one surveillance drone was brought down by the armed forces around 9:20 pm near Mand village. An expert team is looking for the debris."
In a message at 10:45 pm, he advised people against going near any debris and to immediately inform the nearest police station.
It has also been informed that there was no drone activity since 10 pm, Aggarwal said.
The Jalandhar deputy commissioner urged residents to remain calm and not burst firecrackers, as had been reported in some areas.
Earlier, he had said that lights had been switched off in some areas around Suranassi as a precautionary measure after reports of drone sightings.
"We are verifying them. There is no (total) blackout as of now. There is nothing to worry, as confirmed by armed forces officers. They are on regular vigil as always," Aggarwal had said in a message at 9:15 pm.
Precautionary blackout measures were also enforced in Punjab's Amritsar and Hoshiarpur districts on Monday.
Electricity has also been switched off in some areas of Jalandhar, officials said.
"As a precautionary measure, lights have been switched off in some areas around Suranassi as there have been reports of drone sightings. We are verifying them. There is no (total) blackout as of now. There is nothing to worry, as confirmed by armed forces officers. They are on regular vigil as always," Jalandhar Deputy Commissioner Himanshu Aggarwal said in a message at 9:15 pm.
Punjab shares a 553-kilometre border with Pakistan. An air-raid siren was sounded in Amritsar, which lies along the border.
"We are alert. We are enforcing a blackout," Amritsar Deputy Commissioner Sakshi Sawhney said in a message and urged people to stay away from windows.
The Amritsar administration has urged citizens to remain calm.
"We will notify you when the electricity supply is ready to be restored. Do not panic."
In Hoshiarpur district, blackout measures were enforced in Dasuya and Mukerian.
A semblance of normalcy was observed in the border areas of Punjab on Monday, with markets teeming with people even though schools in some districts remained shut as a precautionary measure following the suspension of hostilities between India and Pakistan.
On Monday, talks between the DGMOs were held during which issues related to the continuing commitment that both sides must not fire a single shot or initiate any aggressive or inimical action against each other were discussed, the Indian Army said.
It was also agreed that both sides would consider immediate measures to ensure troop reduction along the borders and in forward areas, it added.