  We carried out a detailed study of the temporal and broadband spectral
behaviour of one of the brightest misaligned active galaxies in gamma-rays, NGC
1275 utilising 11 years of Fermi, and available Swift and AstroSat
observations. Based on the cumulative flux distribution of the gamma-ray
lightcurve, we identified four distinct activity states and noticed an increase
in the baseline flux during the first three states. Similar nature of the
increase in the average flux was also noticed in X-ray and UV bands. A large
flaring activity in gamma-rays was noticed in the fourth state. The source was
observed twice by AstroSat for shorter intervals (~days) during the longer
observing periods (~years) state 3 and 4. During AstroSat observing periods,
the source gamma-ray flux was higher than the average flux observed during
longer duration states. The increase in the average baseline flux from state 1
to state 3 can be explained considering a corresponding increase of jet
particle normalisation. The inverse Comptonisation of synchrotron photons
explained the average X-ray and gamma-ray emission by jet electrons during the
first three longer duration states. However, during the shorter duration
AstroSat observing periods, a shift of the synchrotron peak frequency was
noticed, and the synchrotron emission of jet electrons well explained the
observed X-ray flux.
