Consider the following statements about the Nari Shakti Vandan Adhiniyam (106th Constitutional Amendment Act):

1. The reservation of seats for women under the Act will automatically take effect from the very next general election after its enactment.

2. The Act carries a sunset clause, under which the reservation ceases to have effect after a specified period unless extended by Parliament.

3. Within the seats reserved for women, a further sub-quota is reserved for women belonging to the Scheduled Castes and Scheduled Tribes.

Which of the statements given above is/are correct?