The opposition attacked Singh, saying he was charge of the Coal Ministry at that time and he should subject himself to questioning by CBI.
Noted industrialists and trade bodies had attacked the CBI action, saying caution should be exercised while dealing with reputed individuals, industrialists, and honest bureaucrats.
Initially, Singh appeared to be reticent in answering a question on whether CBI should be given so much autonomy that an inspector of the agency would be allowed to question the prime minister.
