Progestasert and $LNG-20$ are

Which one of the following is the most widely used method of contraception by females in India?

Which of the following methods of contraception has the maximum chances of failure?

Match the following:

List-$I$	List-$II$
$1$. Coitus interruptus	$i$. Intra uterine device
$2$. Cervical cap	$ii$. Oral contraceptive pill
$3$. Multi load $375$	$iii$. Surgical contraception
$4$. Saheli	$iv$. Natural contraception
	$v$. Barrier method

$A$: Periodic abstinence is a natural method of contraception in which couples avoid or abstain from coitus from day $10$ to $17$ of the menstrual cycle,when ovulation is expected.
$R$: Day $10$ to day $17$ of the menstrual cycle is considered a safe period.

Match the following columns:

Column-$I$	Column-$II$
$P$. Surgical methods	$I$. Easy
$Q$. Oral pills	$II$. Tubectomy
$R$. $IUDs$	$III$. Withdrawal
$S$. Barrier methods	$IV$. Diaphragm
$T$. Natural methods	$V$. $Cu 7$