Amitabh
Bachchan
accomplished
the
feat
of
talking
and
singing
in
a
12-year-old
child"s
voice,
thanks
to
the
specially
designed
dentures
he
used
for
his
role
in
Paa.
The
dentures
were
made
especially
for
Amitabh"s
character
Auro
in
the
film.
The
shape
and
size
of
the
dentures
transform
Amitabh"s
voice
and
give
him
a
lisp.
The
dentures
were
worn
by
Amitabh
throughout
the
film"s
shooting
and
also
while
dubbing.
According
to
director
Balki,
they
changed
Amitabh"s
personality
completely.
Meanwhile,
the
title
song
that
is
sang
by
Amitabh
was
sent
to
them
by
Ilaiyaraja,
who
had
recorded
it
in
his
own
voice.
Amitabh
then
sung
it
himself
and
sent
back
to
Ilaiyaraja
who
then
mixed
it.