Short answer
Gandhipuram, Cross Cut Road, and textile co-operatives in Coimbatore (Tamil Nadu) are the premier wholesale hubs for lightweight, breathable Coimbatore soft cotton and mercerised zari border sarees.
Coimbatore is renowned across South India for its fine-count combed cotton sarees that offer exceptional comfort in tropical climates:
Tell us what you're looking for and we'll point you to the right market or supplier.