Section 186 of Income Tax Act, 2025 : Mode of undertaking transactions.

(1) No person shall receive two lakh rupees or more––
(a) in aggregate from a person in a day; or
(b) in respect of a single transaction; or
(c) in respect of transactions relating to one event or occasion from a person, except through—
(i) an account payee cheque;
(ii) account payee bank draft;
(iii) electronic clearing system through a bank account; or
(iv) any other electronic mode, as prescribed.
(2) Sub-section (1) shall not apply to—
(a) any receipt by Government, any banking company, post office savings bank, or co-operative bank;
(b) transactions of the nature referred to in section 185;
(c) such other persons or class of persons or receipts, as notified by the Central Government.