What are the legal marriageable ages for females and males,respectively,in India?

Chromosomal abnormality of an unborn baby (while in mother's womb) can be found out by a technique called

Reproductive health refers only to healthy reproductive functions. Comment.

Persons of all ages are susceptible to sexually transmitted infections (STIs),but they are reported to be very high among persons in the age group of ....... years.

The success of birth control programmes in controlling population growth is dependent on

Comment on the essential features required for an ideal contraceptive.