New Delhi, Apr 15 (ANI): The Centre on Friday suspended the validity of liquor baron Vijay Mallya’s passport for four weeks on the recommendation of Enforcement Directorate, directing him to respond within one week as to why it should not be revoked. Speaking on the development, Congress leader Manish Tewari said the decision gives a clear glimpse of NDA’s “double standard” on Mallya. Tewari further accused the ruling dispensation and said why he was allowed to flee if the government was so concerned?