I am able to send the command "insert data" to the tcp server and it will do what is suppose to. I would like the server to take multiple commands one after the other. At the moment if i send "insert data" and then hit enter and then send "bob" which should not do anything the server responds as if i sent "insert data" again. If you think i should post full source code up let me know in comments.. Screenshot: http://imgur.com/UNRFb5n

#define buf 2000
void *connection_handler(void *socket_desc)
{
    //Get the socket descriptor
    int sock = *(int*)socket_desc;
    ssize_t read_size;
    char *message , client_message[buf];
    //char *contents;
    //contents = "hello";
    //strcpy(mess,contents);
    //Send some messages to the client
    message = "Greetings! I am your connection handler\n";
    write(sock , message , strlen(message));

    message = "Now type something and i shall repeat what you type \n";
    write(sock , message , strlen(message));

    //Receive a message from client
    while( (read_size = recv(sock , client_message , buf , 0 )) > 0 )
    {
        //write(sock , client_message , strlen(client_message));
        char start_char[] = "start";
        char insert_demo_char[] = "insert_demo";
        char *inserting = "Inserting Data\n";
        char *complete = "Task Complete\n";
        if(strcmp(message, start_char))
        {
            printf("Starting...\n");
            //start();
            //printf("it works");
            //fflush( stdout );
        }
        if(strcmp(message, insert_demo_char))
        {
            write(sock , inserting , strlen(inserting));
            printf("Inserting data\n");
            insert_demo();
            write(sock, complete, strlen(complete));
            printf("Finished Inserting Data\n");
        }
    }
    if(read_size == 0)
    {
        puts("Client disconnected");
        fflush(stdout);
    }
    else if(read_size == -1)
    {
        perror("recv failed");
    }

    //Free the socket pointer
    free(socket_desc);

    return 0;
}

while( (read_size = recv(sock , client_message , buf , 0 )) > 0 )
{
    [...]
    if(strcmp(message, start_char))

After you receive data into client_message, you are checking the buffer named message instead. Since you didn't recv() into that buffer, of course it has not changed.

Also note that strcmp() returns 0 if the two strings are equal, and non-zero if the two strings are different; you may have that backwards in your if(strcmp()) tests (I'm not sure what behavior you intended).