  We study slow roll single field inflationary scenario and the production of
non-thermal fermionic dark matter, together with standard model Higgs, during
reheating. For the inflationary scenario, we have considered two models of
polynomial potential - one is symmetric about the origin and another one is
not. We fix the coefficients of the potential from the current Cosmic Microwave
Background (CMB) data from Planck/Bicep. Next, we explore the allowed parameter
space on the coupling $(y_\chi)$ with inflaton and mass $(m_\chi)$ of dark
matter (DM) particles $(\chi)$ produced during reheating and satisfying CMB and
several other cosmological constraints.
