Dear Aditya,
Communication such as this , is often filled with gratitude and future promises. I request you to think beyond that. You have an option to introduce yourself with what you wish to do in the organization and share what have you done so far, beyond your resume.
However, that's time-tested, yet to an extent, unreal. Please make a note of what you want your new team to know. This is beyond every admiration and adulation that you have received so far. Take a hard look at your capabilities. Suppose you have excelled in managing Payroll. This have already been mentioned in your resume. Yet, what nobody knows, is the effort and challenges, that required you to become an expert and any failure that marked the landmark success to your career. Generally , most of us are apprehensive about sharing a failure. Nevertheless, it will make you human and honest to your team.
Eventually, they would all get to know you. Hence, its pointless to hide your fault. Presenting your capabilities and limitations with maturity and grace will earn your respect.
Rest is your choice. Wish you all the best!