Related Rule
India
Practice Relating to Rule 12. Definition of Indiscriminate Attacks
Section A. Attacks which are not directed at a specific military objective
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, India stated that indiscriminate attacks are generally defined as including “those that are not directed at any single military objective”. 
India, Written statement submitted to the ICJ, Nuclear Weapons case, 20 June 1995, p. 3.