chinese multi-barrel rockets. The SAM interceptors will be more xpensive than those rockets.
Even better if convert them to gliders to cover the entire N india
Look at the map: Nu delhi is only ~ 350 km from chinese border
Link: China’s new PCL191 multiple launch rocket system casts shadow over Taiwan Strait | South China Morning Post (scmp.com)
Link: 恐怖:中国WS-2D火箭炮射程竟达400公里[图]--军事频道-中华网-中国最大职业人士门户 (archive.org)
-----350 km...400km... range across the sea;those rockets were originally designed for the TW strait...
Simple physics--The range will definitely lengthen when fired from hi altitude in tibet to lower altitude nu delhi