Income tax return filing 2024

hello all

my husband not a senior citizen got interest income on fixed deposits of rs. 5,74,275 and stcg income of rs. 61,056

he did investment of rs. 1.50 lacs on tax saver fd n paid mediclaim of rs. 28,790

our CA says to file itr in new regime otherwise he says as pwr old regime we will have to pay tax which will be cut from tds already deducted by our bank

is it true