Lets see an example for better clarity.
name=input("name?")
if(name=="Lingaraj"):
print("The name entered is",name)
elif(name=="Sradha"):
print("The name enterd is",name)
elif(name=="Priyambada"):
print("The name entered is",name)
else:
print("Invalid name")
Example:
#program to find largest of given 3 numbers from the keyboard
n1=eval(input("Enter first number:"))
n2=eval(input("Enter first number:"))
n3=eval(input("Enter first number:"))
if n1>n2 and n1>n3:
print("largest number is:",n1)
elif n2>n3:
print("largest number is:",n2)
else:
print("largest number is:",n3)