(a) whether the NHAI has black listed some road construction companies for
irregularities/anomalies in road projects in various States including West Bengal, Delhi/ NCR, Bihar and Uttar Pradesh;
(b) if so, the details thereof along with the details of such companies;
(c) whether any punishment/penalties have been awarded in such cases and if so, the details thereof; and
(d) the manner in which these irregularities/anomalies are proposed to be sorted out?