Few minutes Before time running 12042 NJP HWH Shatabdi Express (mps 130kmph) is controlled at Khana Jn. for 7 mins to give precedence to 12024 PNBE HWH Janshatabdi Express (mps 110kmph). This is a very common controlling strategy of maintaining slot & Howrah division always provides priority to 12024, even more than Dn Rajdhani trains (in some cases observed).