Administrative Action vs Delegation: Mein Konfus Kya Hai!

Yaar samajh nahi aaya! Maine Administrative Law chapter padha hai aur maine suna hai ki Administrative Action aur Delegation dono hi concept hain. Lekin phir woh kaise alag-alag hain ya nahi, isme confus ho gaya hai. Meri teacher ne kaha hai ki deputation ek prakriya hai jisme koi bhi adhikari ko dusre adhikari ke paas bheja jata hai, aur ismein koi naye rule ya power nahi banaya jata hai. Lekin administrative action mein bhi rules banaye jaate hain. To phir kya hai difference? Kya yeh dono hi same cheez hain? Please help, koi batao ki main samajh sakoon?