Feeling nervous by bank audit

DEAR FRIENDS,

                         THS IS THE FIRST TIME WHEN I AM GOING FOR AN STATUTORY BANK AUDIT OF PNB... I KNOW NOTHING ABOUT THAT... WHAT TO DO THERE... MY SIR HAS GIVEN ME THAT TASK BUT HASNT TOLD ME MUCH ABOUT THAT... I HAVE JUST 300 PAGES GUIDELINES ISSUED BY THE BANK AND ICAI ON ABOUT BANK AUDIT...AND I AM FINDING IT TOUGH TO COVER IT FULL.....PLS HELP ME . I M REALLY TENSED...