According to the plea, the alleged snooping represented an attempt by agencies and organisations to muzzle the exercise of free speech and expression of dissent in India.
The issue affects the freedom of citizens, the lawyer, appearing for Ram and Kumar said, and added that opposition leaders, journalists and even court staff have been put under surveillance.
Congress spokesperson Shaktisinh Gohil said the government should clearly tell whether it has purchased the Pegasus spyware or not and hold a joint parliamentary probe.