Family planning had a political impact also. A fall in population reduced the number of seats in parliament. This affected the interests of the States, which were not keen to implement the programme. The population policy stipulated that the representation in the Lok Sabha be frozen on the basis of the 1971 population till 2001. This meant that the census of 1981 and 1991 would not be considered for the adjustment of the Lok Sabha seats . Constitutional amendments were made for this purpose.