Discuss  any two methods of birth control.
Or
Explain surgical method of contraception in detail.

Two methods of of birth control are 
1. Use of  oral contraceptives like pills that contain Progestogen or combination of Progestogen-estrogen which prevent ovulation and implantation.

2.. Sterilization procedures in which a small part of the gonads is surgically removed to prevent transport of gametes and thus prevent conception.

It can be of two types 

(a) Vasectomy. which is a sterilization procedure in male where a small part of the vas deferens is surgically  removed or tied up through a small incision on the scrotum.

(b) Tubectomy. which is a sterlisation process in  women where a part of  of fallopian tube is cut and tied off through a small incision in the abdomen or through vagina.