No. Micromax Bharat 1 (2018) V409 does not have the OTG support.
Yes, Micromax Bharat 1 (2018) V409 does have the pre-installed WhatsApp application.
Yes, Micromax Bharat 1 (2018) - known as Micromax V409 does have the Kannada language support.
Yes, you can browse Facebook easily with the help of pre-installed Opera browser of Micromax Bharat 1.
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.
Everything about this phone is good and you cannot compare it with any other phone considering the price. Micromax has delivered what is expected after paying this sum and I am quite satisfied.
Best 4G Keypad Phone
I wanted to buy one as a standby phone with my smartphone and this is the perfect phone if you are looking to buy. Jio sim card works pretty well. There is no issue of coverage and battery is also good. Good deal from onlymobiles.