Rihanna is rocking the mic at a lavish pre-wedding bash over in India, where the son of Asia’s richest man is getting hitched … and the performance looks like one of her stadium shows.

Ya gotta see the video — this ain’t no ordinary wedding party — Rihanna’s on a huge stage with a full squad of backup dancers, along with tour-worthy lighting and special effects.

Looks like no expense is being spared, Rihanna’s even singing from a rising platform and this whole event is giving her Super Bowl halftime show a run for its money.

The crowd is huge too … there are about 1,200 people on the guest list.

The guy footing the bill won’t go broke, though … billionaire industrialist Mukesh Ambani — worth about $112 billion — is helping his youngest son, Anant, host celebs and heads of state for the 3-day event celebrating his July nuptials.

Rihanna’s giving the people what they want and singing her hits … like “We Found Love” and “B**** Better Have My Money.”

Speaking of which, she’s reportedly getting $6 million for the appearance!

As we reported, Rihanna flew into townearlier this week, with crate after crate filled with her luggage and staging — so, all signs were pointing to the kind of spectacle we’re now seeing.

The Ambani family always goes all out when it comes to weddings … other family members in years past were treated to pre-wedding performances from Beyonce, Coldplay’s Chris Martin and The Chainsmokers.

RiRi’s more than holding her own here … and famed magician David Blaine is reportedly booked to perform too.

Money well spent!!!