According to News Bpl and Kota div are recently upgraded to 120 from 110 but both are having this mps from very long time even kota has 130 kmph mps. For Jbp div its very good news agr esa hua to punctuality or avg speed of section will improve.
And for list of trains which can run at 120 kmph in this section are from my view, Ald Duronto, Ltt-Kyq AC, Patna Suvidha, Jbp GR.