Rule 2A [ Notice of intention to defend

Without prejudice to paragraph (2), in any proceedings commenced by a third party notice which the third party intends to defend he shall, within a period of 21 days from the date of service upon him of the third party notice serve on the other party or parties to the proceedings and deliver to the chief clerk a notice of intention to defend in Form 42A.

A third party shall not serve a notice of intention to defend after the expiration of a period of 21 days after service upon him of the third party notice except with the consent in writing of the other party or parties or with the leave of the judge or the district judge as the case may be.