If you talk about the placement of chemical engineers in NIT Allahabad then in previous year the percentage of placed students was 77.78% and average CTC was 6.01 pa and the maximum package was 9.95 pa. So as per the previous year records the placement of chemical engineers in MNIT is decent.

Also, to check about the same in detail, you can go through the complete stats from 2011-2017 -

MNIT Placement report

Good Luck!!!!