Muga silk is associated to which of the following states of India?

Option 4 is correct, i.e. Assam . Muga silk is the product of the silkworm Antheraea assamensis and is mostly grown in Assam . The larvae of these moths feed on som and sualu leaves. Assam is the largest producer of this golden-colored silk in not just India but the entire world. Assam is famous for its Muga variety of silk. It is registered as a Geographical Indication for Assam . Know about Assam: Capital : Dispur Languages : Assamese, Bodo, Bengali Major Rivers : Subansiri, Dihang, Brahmaputra. Geographical Indications : Muga Silk, Tezpur Litchi, Boka Chaul (Oryza sativa), Gamosa, Chokuwa. World Heritage Sites : Kaziranga National Park on the bank of the Brahmaputra, Manas Wildlife Sanctuary near the border with Bhutan.