A list built for site supply
For a Mumbai supplier the item list is cement by brand, TMT by size, aggregate, and the finishing and fitting lines the redevelopment trade needs. Set agreed rates against your regular builders so a supervisor billing at a site charges the right price without asking. Freight as its own line matters here more than most, because delivery cost varies enormously across the belt.
Redevelopment, and one builder across many sites
The Mumbai, Thane and Navi Mumbai belt is redevelopment work almost end to end, and it produces an unusual pattern for a supplier: the same builder buys from you for years across a dozen different project sites. What you need is not one ledger per builder but one ledger readable site by site, so a question about which tower a load went to is answered from the record rather than from memory.
Speed, because the contractor is on site
The person waiting for your bill is usually standing at a site rather than at your counter, and he wants the invoice on WhatsApp before the truck leaves. A supervisor with a limited login can raise it there — at the rate agreed with that party, not a counter rate — and it appears in your account the same moment. That removes the round trip that costs half a day in this city.
Freight on its own line
Transport across the belt is a real cost and it varies with the destination, the time of day and whether the site is reachable. Folding it into the material rate makes your price look higher than it is and hides whether you are recovering it. On its own line, the customer sees what is material and what is delivery, and you get a monthly figure for both.
Setup over a call
Setup is done over a phone call and screen share of about thirty minutes: your shop details and GSTIN, your main items with the right units, your parties with their opening balances, and your bill format. You raise a real bill before it ends, and support afterwards is in Hindi or English on phone and WhatsApp.