  Proton capture cross sections in the energy range of astrophysical interest
for mass region 40-54 have been calculated in the Hauser-Feshbach formalism
with reaction code TALYS1.6. The density dependent M3Y effective
nucleon-nucleon interaction folded with target radial matter densities from
relativistic mean field approach is used to obtain the semi-microscopic optical
potential. A definite normalization of potential-well depths has been used over
the entire mass region. The $(p,\gamma)$ rates of some reactions, important in
the astrophysical scenario, are calculated using the potential in the relevant
mass region.
