I think Iron dome works well for a small area like Israel. Costs for implementing in India on wide scale will be too high for feasibility.
Though we can try to protect the capital with this method.
http://defenceforumindia.com/forum/strategic-forces/44236-india-test-ballistic-missile-interceptor-today.html#post619661
@BW .. please take the interceptor discussion there
This is a bad idea. The Dome would be a half accurate overkill at a high cost.
Our artillery should be improved instead. Any mischiefs could be replied to, without even crossing the international border / LOC.