Pakistan & Bangladesh
Pakistan & Bangladesh are both theocratic States, wherein Islam is the official religion. In both countries Muslims of the Sunni sect constitute the majority. On the issue in hand, it has the following legislation in place:
Muslim Family Laws-Ordinance 1961- Ordinance VIII of 1961 amended in Bangladesh by Ordinance 114 of 1985 (Bangladesh changes noted below relevant provisions)
Section 7. (1) Any man who wishes to divorce his wife shall, as soon as may be after the pronouncement of Talaq in any form whatsoever, give the Chairman a notice in writing of his having done so, and shall supply a copy thereof to the wife.
(2) Whoever contravenes the provision of sub-section (1) shall be punishable with simple imprisonment for a term which may extend to one year, or with fine which may extend to five thousand rupees, or with both. [Bangladesh: ten thousand taka]
(3) Save as provided in sub-section (5), a Talaq unless revoked earlier, expressly or otherwise, shall not be effective until the expiration of ninety days from the day on which notice under subsection (1) is delivered to the Chairman.
(4) Within thirty days of the receipt of notice under sub-section (1) the Chairman shall constitute an Arbitration Council for the purpose of bringing about reconciliation between the parties, and the Arbitration council shall take all steps necessary to bring about such reconciliation.
(5) If the wife be pregnant at the time Talaq is pronounced, Talaq shall not be effective until the period mentioned in sub-section (3) or of pregnancy, whichever is later, ends.
(6) Nothing shall debar a wife whose marriage has been terminated by Talaq effective under this section from re-marrying the same husband without any intervening marriage with a third person, unless such termination is for the third time so effective.
Sri Lanka:
It is a secular State. Buddhists constitute its majority. On the issue in hand, it has the following legislation in place:
Muslim Marriage and Divorce Act 1951
Section 17 (4) Save as otherwise hereinafter expressly provided, every marriage contracted between Muslims after the commencement of this Act shall be registered, as hereinafter provided, immediately upon the conclusion of the Nikah ceremony connected therewith.
(5) In the case of each such marriage, the duty of causing it to be registered is hereby imposed upon the following persons concerned in the marriage;
(a) the bridegroom,
(b) the guardian of the bride, and
(c) the person who conducted the Nikah ceremony connected with the marriage.
Section 27. Where a husband desires to divorce his wife the procedure laid down in Schedule II shall be followed.
(2) Where a wife desires to effect a divorce from her husband on any ground not referred to in sub-section (1), being a divorce of any description permitted to a wife by the Muslim law governing the sect to which the parties belong, the procedure laid down in the Schedule III shall be followed so far as the nature of the divorce claimed in each case renders it possible or necessary to follow that procedure.
29. Talaq-e-biddat is effective, the very moment it is pronounced. It is irrevocable when it is pronounced.