Resignition and appointment of new director

Hii all,

I need an urgent help. My problem is as follows.

in a company there are two directors only.

Both the directors do not have DIN number

one of the directors want to resign by 31st march

One director needs to be appointed. We have got the provisional din for the new director

Now how can I proceed?

Further I want to know if one director is having one provisional din approved, can he apply his own DSC for his DIN 3?

Please help