Two pan cards with different data of single person

Hi Sir, As my first PAN Card with the dob as on 10th Class certificate. I asked the executive to apply another PAN Card as the photo of the previous one is faded and not able to view clearly when we take Photostat copies. He applied new Card, i got new pan card with different number and DOB also different. I discarded the previous one and started using the new pan card for the last 7 years and paying the IT returns. But, now, i want to attach my Aadhar Card to PAN Card. My question is here, can i cancel the old pan card (As per 10th Class dob) and continue the new pan card (Which i have been paying around 7 years IT returns)....and would like to surrender old pan card. OR can i apply for change of date of birth, NAME, Signature of the second pan card and attach to Aadhar Card .....I want to surrender old PAN Card by paying the penalty or vice versa (i.e., new pan card) Please clarify that which is the best way to proceed...