Why copper-T is a popular contraceptive device?

Condoms are one of the most popular contraceptives because of the following reasons

CuT is an intrauterine contraceptive device. Select the option that correctly defines the role of Cu

Oral pills are very popular contraceptives among the rural women.

Main disadvantages of intrauterine contraceptive devices is that

Implanon, an implanted contraceptive device, contain levonorgestrel.

Consider the statements given below regarding contraception and answer as directed there after : Medical termination of pregnancy (MTP) during first trimester is generally safe. Generally chances of conception are nil until mother breast -feeds the infant upto two years. Intrauterine devices like copper-T are effective contraceptives. Contraceptive pills may be taken upto one week after coitus to prevent conception. Which two of the above statements are correct ?

Which of the following two statements are correct ? (i) Medical termination of pregnancy (MTP) during first trimester is generally safe (ii) Generally chances of conception are nil until mother breast-feeds the infant upto two years (iii) Intrauterine devices like copper-T are effective contraceptives (iv) Contraception pills may be taken upto one week after coutus to prevent conception.

The correct surgical procedure as contraceptive method is

The correct surgical procedure as contraceptive method is :

In which institute of India, Saheli, an oral contraceptive was developed ?