NEW DELHI: Prime Minister Narendra Modi on Tuesday held a high-level meeting with defence minister Rajnath Singh, Union home minister Amit Shah and NSA Ajit Doval. During the meeting, discussions were held on futuristic challenges in the defence sector and equipping armed forces with modern equipment, news agency ANI reported quoting sources. The meeting comes in the backdrop of drone attack on the Jammu air force station last week. In what was the first instance of Pakistan-based terrorists deploying drones to strike vital installations, two bombs were dropped at the IAF station in Jammu in the early hours of Sunday, causing minor injuries to two airmen. The explosions took place around 1.40 am within six minutes of each other. The first blast ripped off the roof of a single-storey building at the technical area of the airport manned by the IAF in Satwari area on the outskirts of the city. The second one was on the ground.