After experimenting with barbed wire, surveillance cameras and even cowbells and camels, India has now reportedly introduced "laser walls" at its border with archenemy Pakistan.
Image: Pakistani Ranger and Indian BSF officer goose-step at Wagah border
A Pakistani Ranger (right) and an Indian Border Security Force officer (left) goose-step during the daily parade at the Pakistan-India border at Wagah on March 15, 2010. MOHSIN RAZA / Reuters, file
One of the world's most dangerous nuclear flashpoints, the India-Pakistan border is also among the most militarized.
Both New Delhi and Islamabad deploy more than half of their 1 million and 600,000-strong armies, respectively, on the border.
India is setting up the laser walls to "plug the porous riverine and treacherous terrain and keep an effective vigil against intruders and terrorists" in Punjab state, the state-run Press Trust of India reported.
Earlier this year, peace talks were suspended when India accused Pakistan of allowing militants to cross over and attack an Indian air force base in Pathankot on Jan. 2.
According to the PTI report, around 45 laser walls will be installed in Punjab state.
Image: Map showing India's Punjab state
A map showing India's Punjab state, which borders Pakistan. Google Maps
Lasers beamed over rivers and hills will set off an alarm and alert the Indian Border Security Force if someone attempts to pass by, it added.
Pakistan has not taken India's buildups on the border lightly in the past.
In 2014, India and Pakistan exchanged artillery and sniper fire for months, leading to dozens of casualties on both sides.
Both countries possess nuclear weapons.
Image: A Border Security Force soldier stands guard along the India-Pakistan border
A Border Security Force soldier stands guard near where a 98-foot long tunnel was found at the border with Pakistan around 22 miles from Jammu, India, on March 4. Channi Anand / AP