Greetings,
That's all you need. Maintain the statements from both accounts, they are the valid legal proof that you had offered your professional services to them. Now take a closer look at every communication you had with you organization. Streamline the ones, which include details about your roles, tasks to be delivered, Skillsets you worked on, projects you handled and any appreciation you had received. Keep printouts of all such communications. It can be through emails with company email id or on any letter head. Other than that the form 16 is another proof which is accepted by all the companies. So keep it ready.
Finally when you leave this organization, you may or may not get any communication from them. Hence write a detailed testimonial for them, appreciating the time and experience you had with them. Please do mention all your roles and duties delivered and thank each person, to whom you reported. Keep a printout of it with you. You may or may not get a reply from them. In case you are lucky to get a reply, probably a similar thanks, keep a printout of the entire conversation. That should do you good. Keep a very grateful and non-threatening approach throughout, especially during your exit process.
Wish you all th best!
Regards,
(Cite Contribution)
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