The fort, now a heritage hotel, was decked with flowers, lights and candles for the launch of the show Friday, in which the 36-year-old actress will search for her "soulmate".
"Super excited! Going to be revealing the first promo for 'The Bachelorette India' in Udaipur...," Mallika posted for her Twitter followers.
The dating reality show, a take-off from the internationally popular format of "The Bachelor", focusses on finding a match for the actress from among 30 contestants.
