Two mechanical contraceptive methods are as follows: 

A. Condom or Nirodh:

1. It is a protective barrier in the form of thin rubber sheath which is used by male partner during the sexual coitus. It covers the penis and does not allow semen to flow during copulation. 

2. Thus the entry of ejaculated semen into the female reproductive tract is obstructed. This can prevent conception. It is a simple and effective method and has no side effects. 

3. “Nirodh” is a condom, most widely used in India as a contraceptive by males. 

4. Condom also protects both the partners against sexually transmitted diseases such as AIDS and others.

B. Diaphragm, cervical caps and vaults:

1. Diaphragm and cervical caps are to be used by females as mechanical contraceptive measures. 

2. They are made up of rubber. They are fitted on the cervix in vagina so that they prevent the entry of sperms into the uterus. 

3. They are kept at least six hours after sexual intercourse in order to inhibit sperms from entering female genital tract.