All the following statements are correct about 'Saheli', but one is wrong. Which one is wrong?
New oral contraceptive pill for females
Contains non-steroidal preparation
It is 'once a week pill'
It increases the phagocytosis of the sperm within the uterus
Give scientific reasons : Pills taken orally prevents pregnancy.
Which of the following is a wrong match between the type of contraception and its function?
Contraceptive$\quad$ device Function
Cu ions of $IUDs$
$A$ : Maximum chances of failure in Rhythm method of contraception.
$R$ : Very few women have absolutely regular cycles.
Action of vaginal diaphragm is