Architect service vs consulting engineer service

When do I classify a service as architect service, and when as a consulting engineer's service?

Consulting engineer service was introduced in the year 1997 and it covers even architectural engineering. The architect service was introduced in the year 1998.

As per my knowledge, as a specific part has been introduced at a later stage, that will prevail over the general service.

But when I see most of the case laws related to architects (like preparation of designs and drawings), the Department, and even sometimes the CESTAT has classified them as consulting engineer service.

Can anyone pls provide me the details as to when a service will be classified as consulting engineering service and when as an architect service.

Thanks in advance...