Difference between form 16 and 26as

SAIYED SHAKEEL AHMAD (PGT(MATHS)) (25 Points)

27 July 2013  

for assmnt year 2013-14 my form 16 shows that my tds rs 28890 but form 26as shows 27890. the correct tds is 28890 already deducted. i already file my itr-1 online on 26 july 2013. what will happen in this case. will i be penalised. how to correct it. plz help me