Dear friend , as you described you have  so much 
responsbilties on your shoulders of the said company . It 
is quite good , but the answer of this question could be 
given by you only , As for whome you are working ,he has to 
be given you a proper designation . You can not opt any 
designation by yourself too. So in my opinion i think you 
have to decide by yourself . 

Thanks & Regds
Amit K Pandey 

hai ,
you have most important responcibilities.with our these 
responcibilities company can't run. so u r a chief manager 
of accounts.

dear friend , as according to ur question ,  they just asked
u a very simple question that what would u do for ur branch ? 
so in my opinion , u have to give this answer more calmly
about the branch,this should not b included ur job profile
at all . there purpose of asking this question was just
simple bcoz they are going to handle u the whole
responsibility of their branch ...so this is compulsory they
never want to give that person who ever don't think about
the other staff members , infrastructures , increasing
business criterias & SO on steps..

FIRST OF ALL THIS QUESTION IS NOT TO ASK FOR YOU. B'COZ YOU 
ARE HANDLING CORPORATE ACCOUNTS NOT THE BRANCH ACCOUNTS. 
2. BRANCH ACCOUNTS PERSON DO DAY TODAY ENTRY TILL 
FINANISATTION OF THIS BRANCH BOOKS. WHERE AS CORPORATE 
ACCOUNTS PERSON SCRUNTINIZE THE BRANCH BOOKS OF ACCOUNTS.
3.YOU CAN HELP YOUR BRANCH ACCOUNTS PERSON WHERE EVER HE'S 
HIS LACKING, MOTIVATE HIM, CO-ORDINATE WITH HIM TO SORT OUT 
IF THERE IS ANY ISSUES & SO ON.

He is The (GM) General Manager