Lok Sabha LoP Rahul Gandhi, Congress MPs Priyanka Gandhi, KC Venugopal, and Deepender Singh Hooda, and other MPs at the Parliament premises during the ongoing Monsoon Session, in New Delhi.
Speaking in Parliament, Chadha referred to the alleged leak of the Class 12 Pre-University Chemistry examination paper when the Congress was in power in Karnataka.
The letter comes after the Wayanad MP criticised the inclusion of the director of the Indian Institute of Technology Madras in Prime Minister Narendra Modi's 'task force' for exam reforms.