Oldest full ac trn is Deluxe exp (now-a-days Poorva exp). Those days, it ran upto ASR frm HWH. Coaches of Paschim exp frm Mumbai were amalgamated at NDLS n den sent to ASR. In return, the coaches of Paschim were bifurcated at NDLS. Paschim was also full ac dat tym. Both were named Deluxe. One of d highest prioritized trns of dat tym in which all VIPs, officials n diplomats used to travel.