Adding spouse to MPNP application after getting ITA

I have recently received ITA under PNP program from Manitoba province. I live and work in India. Although I am married and have mentioned the same in my application, however while applying I had mentioned that my spouse will not be accompanying me. But now post receiving ITA I am re-considering this and was wondering what is the process and cost for changing the status of spouse from non accompanying to accompanying.

Also will this impact my score / or chances of ITA approval.

Thank you and Regards.