I have another question in a different context and situation. Let's say if an employee works for a month in the organization and absconds without any charge/handover, then comes back after six months to claim his settlement.
Legally, how long are we supposed to keep records/F&F details of an absconding employee? What if an employee comes after one year?
Absconding is an issue, and the way to handle it depends on the tenure the person has served with you. For example, there are a few people who come to your place for a few days or a week and then vanish. What can be done? You surely don't want to hire them back. That is it.
But say a person has worked with you for a considerably longer duration (12+ months or so). Though we would mark him/her as absconded, we may want to at least chat when he/she comes back for his/her F&F.
About Keeping Employee Records
If you have extended an appointment letter to anyone, it is your duty to keep in the file the documents of the person - a copy of residence, photo ID copy, and certifications copy (if needed). These photocopies should be attached to the appointment letter that bears the acceptance signature by the person.
Every data of the person's performance like appraisal results year-on-year, any achievements he got, leave forms, etc., should be filed in duplicate in the records. Ideally, you should be maintaining the records of people who resigned or left for a certain duration (I think for 5 years). I hope this clears your doubts on how long the data should be preserved.
If a person absconds in one month's time, keep the records as I had already mentioned. If the person's salary for the previously worked month was already disbursed and if there are no dues left, I don't think there's anything left. Ideally, a person would not want an experience letter for one month. But if they need a relieving letter, what to do? You can ask him to give a resignation letter. Ensure that it is not backdated. You can hand over the relieving letter dated the current date, and in the letter, you can mention that "The person is relieved of all his/her roles with effective (back date)."
If the person had not taken his salary for the previous period of his work rendered, what to do? He may claim for F&F. As goodwill, I don't think it is very correct to say no on the face of it. You can instead call the person to meet you for this. Ask for the absconding reasons and then justify if that was right. You can explain the company's policy and say there's nothing to be done to give you the claim. All these again depend on the termination policy of your firm.
Honestly, there's no one best practice we can adopt for all as the policies and regulations change from firm to firm and ideally from case to case basis. I always say that as HR, we deal with humans (who are all different) and not robots. So don't just nail the rules. Even if you do, at least be open to listening to them and then explain to them why you can't do it.
Hope this helped.