<Membership_Type_Initial>—<Joining Year>—<Chapter_Initial>—<Registration_no>

For example :

Membership_type => Life-Member, Year of joining => 2021, Chapter => Ahmedbad, Registration no => 1265

Then, Membership no will be => LM-2021-AHM-1265

If you have not updated your joining year under your profile page then your "Year of Joining will be 0000"

Then, Membership no will be => LM-0000-AHM-1265

Membership Type Initial Description
---------------------------------------------------
Life Member : LM
Annual Member : AM
Student Member: SM