Server :: PTR Record Using BIND Version 9.3.3 On RHEL

I am using bind for DNS services on RHEL 5. The forward lookup is working fine. When I try to do a reverse lookup at the server, it shows the correct output but when I try lookup from Internet it shows something like - "mysite.com points to a.b.c.d, which has no d.c.b.a.in-addr.arpa PTR record"

Here are the files:
/etc/named.conf
options {
directory "/var/named";
statistics-file "/var/named/data/named_stats.txt";
};

controls{
inet 127.0.0.1 allow {localhost;} keys {rndckey;};
};
// Declaring reverse lookup zone
// Declaration of domain name resolution
view intranet {
zone "mysite.com" {
type master;
file "/var/named/mysite.com.intranet.hosts";
}; .....