No. Micromax Bharat 5 does not have the NFC support.
We have not come across any user's complaint about it so far. Since the model is new, you can expect that such issues reported by users only after a certain usage or time.
Yes, Micromax Bharat 5 pro does have the google assistant.
No. Micromax Bharat 5 does not have the fingerprint scanner.
No. Micromax Bharat 5 has a mono speaker.