Hi Anu
Sorry, but the Index is a vastly different beastie than the
TOC. The index allows your user to type what keyword they are
looking for into the field. As your user types, the Index coding
causes the base part of the Index to scroll and attempt to match
what is being typed. As a result, your end user often doesn't have
to type the terms completely before seeing what they want come into
view. Then they click and off they go.
If your desire is for an index with the alphabet links across
the top, try choosing the "Pure HTML" navigation type.
Cheers... Rick