
Was this on LinkedIn?

Yep

They could have mailed the founders or send a LinkedIn message. Post daal ke Aisa lag rha hai flex kar rhe hai. " We are so good at lending, even other major players can't come close. We can save you." This sounds more like they are trying to attract investors for their own startup by showing how awesome they are. Have never seen a serious M&A deal being discussed so openly on LinkedIn before it even starts.

This is some Harvey Specter bullshit move

Who dat

See if there are a lot of skeletons in the closet the erstwhile management would prefer shutting it down rather than sale.
The acquirer has also not done their DD so they may not be aware of the potential issues.
It is not very common for an operational NBFC to go without buyers except in limited scenarios.