I have theory. Just like Maya's aide is hidden within the Roy household, similarly Maya's mom might be MJ's aide.
My theory is that Maya loved someone, MJ caused the break-up with the help of his mom. MJ was also behind Rudra's heartbreak. But Rudra loved Maya or not is debatable because Rudra doesn't recognize her.
Maybe MJ had affair with Maya's mom which is why her dad and Manas left them. Also Maya never said Manas was her brother.