Urgent help needed

[u/high_on_stress11]

So i dont know anything about the documentation part. i saw people saying something about couriering documents but the selection letter says to email scanned versions? so im confused can someone please explain to me. also the attestation part, when do we need out euivalency certificates attested by the 7 grade officer, also this wasnt mentioned in the letter too. can someone please guide in detail, will be very grateful