Banks deduct TDS on interest income:ย when it is accrued and not when the FD matures & interest is paid out. So if you have a FD for 3 years โ banks shall deduct TDS at the end of each year.
Fd interest is taxable in the year of accrual..If it exceeds RS 10000 ..Bank deducts tds on the same..But if assessee income is below the exemption limit then He can submit form 15G/15H requesting bank not to deduct TDS..