Technically there are two shatabadi 12029/30 was running with iry/20 rake on initial day to 2019 so they need one day for maintenance so to cater passenger demand they introduce one more shatabadi i.e only weekly with same schedule but different number and that is icf now both turned into lhb and i think but has rsa only difference is 12029/30 has 3ec but 12031/32 has 2ec