I would like to payback money in one of the following ways. I do remember the money received and periodically check with them about when I would give them back. I believe I have paid back all (90%) the people I need to pay, so far.
1 During emergency
If something urgent came up on your end, kindly let me know. I am happy to pay back as soon as possible.
2 In installments
If I owe a bigger amount, I will start paying small amount to build confidence in you. Slowly, I will increase the amount and would complete the payment in full in a reasonable time frame.
For example,
I received 10k from you, I will give 500 - 1000 rupees as a starting amount, no matter my financial situation.