Hi . I am planning to book tickts on 52451 klk-sml shivalik delux on may month. I want to know that if my train 12311 Hwh-kalka mail will late (suppose 2 -- 6 hour ) to reach kalka , will Shivalik delux wait for kalka mail? If not, then what are the others options? Should I book shivalik or not ? Pls suggest