Life member of the Association for Transport Development in India since January, 2008 (Registration No. S/164/2)
Life member of the Regional Science Association, India since September, 2006 (Registered No. S/9336 of 1968-69)
Life member of the Institute of Urban Transport (India), New Delhi since November, 2005 (M-825)
Life member of the Indian Econometric Society since August, 2004 (L/2268/2004-05)
Member of the Executive Committee of the Association for Transport Development in India (Regd.) for the period 2006-08 (Registration No. S/164/2)