Ganapati Pooja + Punyahavachanam

Ganapati Pooja followed by Punyahavachanam — the invocation of Ganapati before any undertaking, and the purification that traditionally precedes a larger rite.

Often booked in its own right before a new venture, and often as the opening of a longer ceremony. If you are planning something bigger, tell us and your purohit will advise on what should come first.