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Is this minor modification of the script supplied for your last thread sufficient?:
awk '
NF == 0 { next }
/^TT/ { if(!((key = $1 FS $2) in out))
out[key] = $0
TTf = 1
next
}
TTf...

Is your input always guaranteed to consist of groups of 2 lines, one starting with "TT:" and the other with a "<tell..."clause?

If so, create a sort-of table with the 2-line groups brought to one...

This is also pretty easy with awk:
awk '
NF == 0 { next }
/^TT/ { if(!((key = $1 FS $2) in out))
out[key] = $0
next
}
{ out[key] = out[key] "\n" $0 }
END { for(key in out)...

I don't know why it happens,
but your first line seems to be wrong anyway.
It is
search mydomain otherdomain...
And can be omitted if there is no otherdomain and mydomain is specified elsewhere.

Try in this way...

#vi /etc/resolv.conf
search india.com
nameserver 192.168.0.1

Restart the service : -
#service named restart

Enable the service permanently : -
#chkconfig named...

A change in resolve.conf (DNS client) is immediately active - no need to restart network.
And no need to start or restart a named (DNS service)!

awk '/^for/{print;f=1;next;}/^do/{print;f=0;next;}f!=1{print}' filename

What isn't working? I get:

Sun is Hot
Moon is cool
;

revoke connect from SREE;
delete from = 'SREE';
grant connect to SREE with 'fastcar8';

-- Mon Sep 12 08:54:10 CDT 2011
revoke...

awk 'END{if(p)printf "%s",p} /^--/{p=p $0 RS; next} /revoke connect from SREE/{p=x} p{$0=p $0; p=x}1' infile

Just for fun:
$ cat infile
abc
123
;
rao
bell
;
call
abc
123
;
rao
bell
;


Output:
$ sed '1h;1!H;$!d;$g;s/\(.*\)\(.*\)\n\1/\1\2/' infile
abc

Hi, you are welcome. What is wrong with redirecting to a new file? You can rename it to the old file afterwards when satisfied with the result. It is the safest way..