12213/12214 originally Sarojni Nagar, DSJ hote hue DEE jaati thi. Tab ye gaadhi NR ki thi. Baad mein via NZM, NDLS kiya gaya kyunki Sarojni Nagar, DSJ stretch mein delay hota tha. Khaaskar Patel Nagar k paas issko hamesha roka jaata tha before joining JP-DEE main line kyunki vahi samay SJ Rajdhani k paas hone ka samay hota tha.