What guarantee that Byju’s survives end of the year?

That billion dollar valuation. It is still a lot of money to survive years.

Still overvalued by about $1000M

I hope you understand valuation doesn’t equate to cash-flow.

Death of companies are always sudden. Slow decay is seen before in the form of employee upheaval.
Byjus has now survived for almost 2 yrs.

With deep sadness i have come to accept that byjus is here to stay. It is just a matter of time before they find a bigger fool willing to invest. Or maybe the promoter himself will invest some of profits earned before.

Correct Rivu