In Dakshin SF express.. . From NZM, there is GNWL and total seats in SL are 350....from AGC, there is also GNWL and total seats are 115 in SL.. .... now my question is that why is GNWL at Agra, not RLWL OR RLGN... and benefits of GNWL at Agra over RLWL and RLGN