What will the password for Friday be ?

Shruti's daughter Arshika need to be picked from the school every day.
Shruti asks one of her colleagues to pick her from school.
Shruti devised a password mechanism to confirm that Arshika goes with the correct person only.
The password on Monday was SAM16.
The password on
Wednesday was RSW39.
What will the password for Friday be?

Challenge to all

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The Answer is TIF56
T - 5th Letter of Shruti
I - 5th Letter of Arshika
F - stands for Friday
5 - 5th day of the week starting monday
6 - No of letters in Friday.