One is Sree Guruvayoorappan suvarna mudra on Guruvayoor Ekadasi day. The other is in connection with Narayaneeyam day. Slokas from Narayaneeyam alone can be chanted in the latter.
There are two events: one is Sree Guruvayoorappan suvarna mudra on Guruvayoor Ekadasi day, and the other is associated with Narayaneeyam day. The recitation of specific slokas from Narayaneeyam occurs only in the latter instance.