43. Are there limits on the amount that third parties can spend on election campaign activities?

47.(1) No expenses may, with a view to promoting or procuring the election of a candidate at an election, be incurred by any person other than the candidate, his election agent and persons authorised in writing by the election agent on account of – [...]

(c) subject to subsection (2), otherwise presenting to the electors the candidate or his views or the extent or nature of his backing or disparaging another candidate.

(2) Paragraph (c) of subsection (1) shall not – [...]

(b) apply to any expenses not exceeding in the aggregate the sum of two dollars which may be incurred by an individual and are not incurred in pursuance of a plan suggested by or concerted with others or to expenses incurred by any person in travelling or similar personal expenses.

Source: Article 47, Representation of the People Act, 1971 (amended 2007)

The limit of 2 BBD for the individuals.