"Today is Esha's sangeet ceremony, which will be held in a hotel. I don't want to say where it is happening. It is a very private affair with close friends and family. The programme will begin at 8.30 p.m.," Hema told in an interview.
Esha is set to tie the knot with her beau Bharat Takhtani Friday.
Asked whether the danseuse will perform at the sangeet, she said: "I will not be performing tonight. Esha's friends and Bharat will be performing tonight."
Hema, who will drape a traditional kanjeevaram sari for the D-day, will wear a Neeta Lulla creation for the sangeet.
"Kanjeevarams are booked only for the wedding. I am wearing a sari tonight for the function. My designer has been Neeta Lulla so far. She is my main designer, but one of my outfits is also designed by Bhumika (of Shyamal and Bhumika)," she said.
Lulla, who styled Esha's bridal look in "Na Tum Jaano Na Hum", has also worked on her real life wedding attire.
"For Esha, costumes have been designed by Neeta Lulla and Rocky S. Neeta has designed for Esha's wedding and mehendi, while Rocky has designed for her sangeet," Hema said.
The sangeet ceremony will be followed by mehendi day Wednesday, and a traditional temple wedding Friday.