Yes, Micromax V409 (Bharat 1 2018) does have the support for the Marathi language. You can change the entire phone's language to the Marathi. You can store contacts, write messages in Marathi, too.
Yes, you can browse Facebook easily with the help of pre-installed Opera browser of Micromax Bharat 1.
Yes, Micromax Bharat 1 (2018) - known as Micromax V409 does have the Kannada language support.
Yes, Micromax Bharat 1 V409 does support the Gujarati language.
Yes, Micromax Bharat 1 (2018) does have the front camera.