  In this article, we present multi-band photometric observations and analysis
of the host galaxies for a sample of five interesting gamma-ray bursts (GRBs)
observed using the 3.6m Devasthal Optical Telescope (DOT) and the back-end
instruments. The host galaxy observations of GRBs provide unique opportunities
to estimate the stellar mass, ages, star-formation rates, and other vital
properties of the burst environments and hence progenitors. We performed a
detailed spectral energy distribution (SED) modeling of the five host galaxies
using an advanced tool called Prospector, a stellar population synthesis model.
Furthermore, we compared the results with a larger sample of well-studied host
galaxies of GRBs, supernovae, and normal star-forming galaxies. Our SED
modeling suggests that GRB 130603B, GRB 140102A, GRB 190829A, and GRB 200826A
have massive host galaxies with high star formation rates (SFRs). On the other
hand, a supernovae-connected GRB 030329 has a rare low-mass galaxy with a low
star formation rate. We also find that GRB 190829A has the highest (in our
sample) amount of visual dust extinction and gas in its local environment of
the host, suggesting that the observed very high energy emission from this
burst might have a unique local environment. Broadly, the five GRBs in our
sample satisfy the typical correlations between host galaxies parameters and
these physical parameters are more common to normal star-forming galaxies at
the high-redshift Universe. Our results also demonstrate the capabilities of
3.6m DOT and the back-end instruments for the deeper photometric studies of the
host galaxies of energetic transients such as GRBs, supernovae, and other
transients in the long run.
