A full owned laundry/dry-cleaning franchise costs Rs 8-35 lakh in India depending on scale, per Bajaj Finserv's laundry business guide -- but the asset-light aggregator route (partnering with 1-2 existing local laundries and using your own two-wheeler and phone for collection/delivery) avoids this entirely, making the real starting cost closer to whatever basic delivery bags and a phone/app for order tracking cost you.
No independently verified income figures exist for the aggregator/pickup-drop model specifically; your margin is the markup between your negotiated wholesale rate with a partner laundry and your customer-facing price, so profitability should be modeled locally based on the rates you can negotiate with laundries in your town.
Figures are quoted from the sources listed under Useful resources on this page. Check them against current local prices before you rely on them.