Will MF also declare NAV on Sunday if Market opens on Budget Day

It is declared that markets will remain open on Sunday 1st Feb due to Union Budget.
I want to know whether MF will also declare NAV on that day?
If market falls and i invest in some MFs ( Topup my existing Folios) , will i get that day NAV (OR) due to Sunday MFs will not work and i will get Monday NAV.?
If market goes up again on Monday, i will miss Sunday Fall…
This is query in my mind.