Dear Mayank, 
Greetings! I would like to keep our name and organisation confidential. 
Here is the issue. 
We hired a lady in 2020 July during the pandemic. We have given her an assignment. She was in that assignment for only four months before the client has asked her to be replaced as she wasn't concentrating on her work. 
In January 2021, she got married. She wanted leave for a couple of weeks and an advance of Rs 2 lakhs which we gave and which was subsequently deducted from her salary month on month.
She became pregnant and we gave her maternity leave also.
In the first week of December 2021, when we proposed her to an MNC, we came to know that she had joined this particular MNC in September 2020.
She is still on this MNC’s rolls and they are paying her salary. She also availed leave for her marriage and maternity from that organisation.
We are also paying her salary.
She is working with both these organisations full time. My company and I feel cheated. How do we address this? I want to recover the money paid to her as salary, is that a possibility? 
Regards,
D