Hello Balamurugan,
Yes, you can recovery one tenant DB with affecting others.
Please check the database recovery part of HANA administration guide and slide https://hcp.sap.com/content/dam/website/saphana/en_us/Technology%20Documents/SPS09/SAP%20HANA%20SPS%2009%20-%20Multitena…
Regards,
Ning Tong