8. Is there a ban on anonymous donations to candidates?

Source: 

Section 5 (1) (d), Regulation of Election Expenditure Act, No. 3 of 2023 

5. (1) A recognized political party, an independent group and a candidate at an election conducted under any law specified in section 2, shall not, directly or indirectly accept or receive a donation or contribution whether such donation or contribution is in cash or kind from-
(d) any person whose identity is not disclosed, 
for the purpose of promoting or procuring the election of such recognized political party, independent group or candidate at such election.
https://www.parliament.lk/uploads/acts/gbills/english/6287.pdf