Section 4. (1) The liability in respect of the pension of any officer serving immediately before the appoin

4. (1) The liability in respect of the pension of any officer serving immediately before the appointed day in connection with the affairs of Bihar, and retiring on or after that day, shall be the liability of the State which grants him the pension; but the portion of the pension attributable to the service of any such officer before the appointed day in connection with the affairs of Bihar shall be allocated between Bihar and West Bengal in the population ratio, and the Government which grants the pension shall be entitled to receive from the other Government its share of this liability. (2) If any such officer was serving after the appointed day for some period in connection with the affairs of Bihar and for some period in connection with the affairs of West Bengal, the Government other than the one granting the pension shall reimburse to the Government by which the pension is granted an amount which bears to the portion of the pension attributable to his service after the appointed day the same ratio as the period of his qualifying service after the appointed day under the reimbursing State bears to the total qualifying service after the appointed day reckoned for the purposes of pension. 4. Amendment of First Schedule to the Constitution.— As from the appointed day, in the First Schedule to the Constitution, in Part A, in the description of the territories of States, — (a) after the paragraph relating to the territory of the State of Assam, the following paragraphs shall be inserted, namely: — "The territory of the State of Bihar shall comprise the territories which immediately before the commencement of this Constitution were either comprised in the Province of Bihar or were being administered as if they formed part of that Province, but shall not include the territories specified in sub-section (1) of section 3 of the Bihar and West Bengal (Transfer of Territories) Act, 1956. The territory of the State of West Bengal shall comprise the territories which immediately before the commencement of this Constitution were either comprised in the Province of West Bengal or were being administered as if they formed part of that Province and the territory of Chandernagore as defined in clause (c) of section 2 of the Chandernagore (Merger) Act, 1954, and also the territories specified in sub-section (1) of section 3 of the Bihar and West Bengal (Transfer of Territories) Act, 1956."; (b) in the 1st paragraph, the words, brackets, letter and figures "and in the case of the State of West Bengal, shall also comprise the territory of Chandernagore as defined in clause (c) of section 2 of the Chandernagore (Merger) Act, 1954," shall be omitted.