Most families bring their own. We have flown a Pandit Ji from New York to Punta Cana for a 175-guest Hindu wedding, and from Canada to Cancun for another. It is entirely normal and entirely manageable, but it is a line in your budget and a set of deadlines, not an afterthought.
Most of what a Hindu ceremony requires travels without difficulty. The items that cause problems at the border are organic: rice, grains, coconut, flowers, betel leaf, fruit, and anything containing seeds or plant matter. Mexico and most Caribbean countries restrict agricultural imports, and declaring them honestly usually means surrendering them.
The practical approach is to split the list. Carry the durable items, and source the perishable ones locally through the resort or a local vendor. Any property with an established South Asian programme will have done this before and will have a supplier. Send them the list six to eight weeks out rather than arriving with a suitcase and hoping.
Undeclared organic material is the fastest way to turn a routine arrival into a two-hour secondary inspection, and the items get confiscated anyway. Declare everything, expect to lose the perishables, and have the local sourcing already arranged.
Some destinations have a resident Hindu community and a Pandit Ji who can officiate. Availability varies enormously and should never be assumed from the resort's assurance that they can arrange one. Ask for a name, ask what languages the ceremony can be performed in, and ask whether the couple can speak to them beforehand. A ceremony performed by someone your family has never met, in a style they do not recognise, is not the outcome you want after a year of planning.
For a Sikh ceremony the equivalent considerations apply to sourcing a granthi, alongside the separate and more significant question of Guru Granth Sahib Ji.
