Serving faults related to net touch by shuttle

I got a query for net touch by shuttle while serving. Will it be called let?

All criterias are met for serving while serving but
Instance 1. The shuttle hits the net top and falls on the receiver service court. Will it be called let.
Instance 2. The shuttle hits the net top and falls on the receiver court but not on the receiver service court. Will it be called let.

Or when will be called let on serving.
Thanking you for reading.