Error "Host not found"

[system at eluminoustechnologies.com]

Hello All,
Sorry for such a long Posting. These are my DNS Files. now whenever i ping to centroindustrialmarysol.com it syays Unknown Host and when i say nslookup the DNS times out. What could be the Prob.

Rgds,
Vishal.

My real domain is "centroindustrialmarysol.com"
I have only one server running Apache, Bind and Sendmail at the same time
My real IP address is 64.86.248.70/255.255.255.192

// named.conf file for ns.centroindustrialmarysol.com (my name server)

options {
        directory "/var/named";
};

controls {
        inet 127.0.0.1 allow { localhost; } keys { rndc_key; };
};

key "rndc_key" {
        algorithm hmac-md5;
        secret "c3Ryb25nIGVub3VnaCBmb3IgYSBtYW4gYnV0IG1hZGUgZm9yIGEgd29tYW4K";
};

zone "." {
        type hint;
        file "root.hints";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "zone/127.0.0";
};

zone "centroindustrialmarysol.com" {
        type master;
        file "zone/centroindustrialmarysol.com";
};

zone "248.86.64.in-addr.arpa" {
        type master;
        file "zone/64.86.248";
};


//////////////////////////////////////////////////////////

// This is the Localhost Zone file (127.0.0)

$TTL 3D
@               IN      SOA     centroindustrialmarysol.com. sistemas.centroindustrialmarysol.com. (
                                199609203       ; Serial
                                28800   ; Refresh
                                7200    ; Retry
                                604800  ; Expire
                                86400)  ; Minimum TTL
                        NS      ns.centroindustrialmarysol.com.
        
1                       PTR     localhost.

///////////////////////////////////////////////////////////

//This is the Forward Zone File (centroindustrialmarysol.com)

$TTL 3D
@       IN      SOA     centroindustrialmarysol. sistemas.centroindustrialmarysol.com. (
                        199609206       ; serial, todays date + todays serial #
                        8H              ; refresh, seconds
                        2H              ; retry, seconds
                        4W              ; expire, seconds
                        1D )            ; minimum, seconds
                NS      ns.centroindustrialmarysol.com.
                MX      10 ns.centroindustrialmarysol.com.  ; Primary Mail Exchanger
                TXT     "Centro Industrial Marysol Corporation"

localhost       A       127.0.0.1

ns              A       64.86.248.70

www             CNAME   ns.centroindustrialmarysol.com.
mail            CNAME   ns.centroindustrialmarysol.com.

////////////////////////////////////////////////////////////

// This is the Reverse Zone file (64.86.248)
$TTL 3D
@               IN      SOA     centroindustrialmarysol.com. sistemas.centroindustrialmarysol.com. (
                                199609206       ; Serial
                                28800   ; Refresh
                                7200    ; Retry
                                604800  ; Expire
                                86400)  ; Minimum TTL
                        NS      ns.centroindustrialmarysol.com.

70       PTR     ns.centroindustrialmarysol.com.