Congress President Rahul Gandhi on Wednesday hailed the Supreme Court judgement junking the requirement of Aadhaar for cell phone and banking services and attacked the Bharatiya Janata Party (BJP) saying it was a "tool of surveillance" for them.

"For Congress, Aadhaar was an instrument of empowerment. For the BJP, Aadhaar is a tool of oppression and surveillance. Thank you Supreme Court for supporting the Congress vision and protecting India," Gandhi tweeted.