I have 5 years of gap between 10th and diploma, I have not mentioned this during the selection process of IBM and finally got selected, Will I get offer letter or not? Will there be any other issues if I get call letter?

Dear sir,
I have completed my BE in 2011 with 65% aggregate, and also three year diploma with 66%, I have also done 12th with 58% and 10th with 82%.
Actually I have attended the IBM drive that was asking throughout 65%, and I have not mention my 12th on my resume because it was not 65% in 12th.
but due to this there was a year gap between my 10th and diploma was of 5 years, and unfortunately I have cleared the IBM process,
After clearing 6 rounds finally I have selected for IBM-2011.

Now My question is everywhere I have seen that year gap not should be more than 2 years, and I have a 5 year gap in my academic.
So will they send me the offer letter or not,
Is there any other issues during joing,
Please reply me as soon as possible, I am very tense due to this.