Cooperative society opting for 115BAD

Ours is a Registered Cooperative society with the same status appearing in IT Site. But as per PAN issued by IT Dept, the Fourth character is showing "L" instead of "A".

Now we want to opt for Sec 115BAD.

All our Advance tax and Self asst tax for the year has been paid under the existing PAN.

Please advice.

Thanks in advance