  The proposed 50 \,kton\, INO-ICAL experiment is an upcoming underground high
energy physics experiment planned to be commissioned at Bodi hills near Theni,
India ($9^{\circ}57'N$, $77^{\circ}16'E$) to study various properties of
neutrino oscillations using atmospheric neutrinos produced by extensive air
shower phenomenon. The resistive plate chamber has been chosen as the active
detector element for the proposed INO-ICAL. An experimental setup consisting a
stack of 12 layers of glass resistive plate chambers each with a size of
$\sim$2\,m$\times$2\,m has been built at IICHEP, Madurai to study the
performance and long-term stability of the resistive plate chambers(RPCs)
commercially produced in large quantities by the Indian industries as well as
its electronics for the front-end and subsequent signal processing. In this
study, the azimuthal dependence of muon flux at various zenith angles at
Madurai (9$^{\circ}$56'N, 78$^{\circ}$00'E and at an altitude of 160\,m above
mean sea level) has been presented along with the comparison of Monte Carlo
from CORSIKA and HONDA predictions.
