Marine Insurance Act, 1963
44. Implied condition as to commencement of risk
(1) Where the
subject-matter is insured by a voyage policy "at and from" or
"from" a particular place, it is not necessary that the ship should
be at that place when the contract is concluded, but there is an implied
condition that the adventure shall be commenced within a reasonable time, and
that if the adventure be not so commenced the insurer may avoid the contract.
(2) The implied
condition may be negative by showing that the delay was caused by circumstances
known to the insurer before the contract was concluded, or by showing that he
waived the condition.