15. A Judge who, immediately before his appointment as such, was a member of a civil service in Bangladesh or was holding a pensionable post in the service of the Republic and who does not fulfil any of the conditions laid down in section 13, shall, ¹[on his ceasing to be a Judge], be entitled to-(a) such pension as would have been admissible to him in his previous service or post, had he not been appointed a Judge, his service as Judge being treated, for the purpose of calculating his pension, as continuation in the service to which he belonged or the post he held immediately before his appointment as a Judge; and(b) an extra pension at the rate of ²[Taka ³[two hundred and fifty]] per month for each completed year of service as Judge, subject to a maximum total pension of ⁴[Taka ⁵[eight thousand and five hundred]] per month.