Using child objects we can count the links. script is as 
given below

SystemUtil.Run "www.hdfcbank.com"
Set aa=description.Create
aa("html tag").value="TD"

set bb=Browser("name:=HDFC Bank.*").Page("title:=HDFC 
Bank.*").childobjects(aa)
cc=bb.count

msgbox cc
For i=0 to cc-1
	bb(i).highlight
Next

There are two ways to get the count of links on a page.

1) g=Browser("Google").Page("Google").GetROProperty("number 
of links")
print g


2) set ld=description.Create()
ld("micclass").value="Link"
set lobj=Browser("Google").Page("Google").ChildObjects(ld)
c=lobj.count
print c