  A CALLISTO spectrometer to monitor solar radio transient emissions from
$\approx 0.8-1.6~R_{\odot}$ (above photosphere) is installed at IISER, Pune,
India (longitude $73^{\circ} 55'$ E and latitude $18^{\circ}31'$ N). In this
paper, we illustrate the instrumental details (log-periodic dipole antenna and
the receiver system) along with the recorded solar radio bursts and radio
frequency interferences produced by the thunderstorms in the frequency range
45-870 MHz. We also developed the image processing pipelines using `sunpy' and
in-house developed python library called `pycallisto'.
