Evidence in support of opposition
44.  Upon receipt of the counter-statement and duplicate provided in rule 43, the Registrar shall forthwith send the duplicate to the opponent and within two months from the date of the Registrar’s letter forwarding the duplicate, the opponent shall file with the Registrar such evidence by way of statutory declaration as he may desire to adduce in support of his opposition and shall, at the same time, send to the applicant a copy of that evidence.