Paid 90 days after the work.
Invoices go out late or wrong, nobody chases until the bank balance forces it, and your cash ends up funding your customers.
Invoices raised the day the job is done, reminders in the buyer's language that cite the 45 day MSME payment rule, a UPI link on every reminder, and the MSME Samadhaan papers drafted when a buyer passes 45 days.
What it costs, and every source

