What should I do if Mil want to come to my place everyday to see baby.. just because she say is bore at home...

Try to talk to your husband and let him know that you are uncomfortable and see if there’s other arrangement like one week let your mil comes once or twice as you need to rest and have alone time with your baby. Get your husband to convey the arrangement and tell him to reassure your mil that is not that you don’t want her to be around but you just want some privacy or so.