Black Anarkali Suit Set you've described seems to be a party wear outfit made from Maslin fabric with digital prints Muslin Dupatta Fancy Lace Border .(3-Pair)
Here are some details about the outfit:
Fabric: Maslin Fabric with Digital Prints
Inner Fabric: Butter Crepe
Length: 49 inches
Type: Full Stitched
Dupatta Fabric :- Multicolor Digital Print Muslin Dupatta With Fancy Lace Border (Dupatta size 2.30meter)
Bottom (Pant): Maslin Fabric with Digital Prints
Sizes Available: M-38 L-40 XL-42 2XL-44 3XL-46 4XL-48 5XL-50 6XL-52
Weight: Approximately 0.600KG