I am expecting petition approval any time now and preparing for interview. My husband would be joining me as a dependent. He is already an IT manager in India. What would be the tips ? Should he join me during the interview along with my daughter? Should he attend the interview after my stamping?
Either way it should be fine. However, I would recommend you all going together for the VISA interview - sometimes VO might not ask anything to the H4 applicants 
In case you are not aware, you don't have to take your child for VISA interview if he'she is less than 7 years of age.