  In this paper, we have presented a comprehensive study of Lorentz Invariance
Violation (LIV) in the context of atmospheric neutrino experiment ICAL and
long-baseline experiments T2HK and DUNE. Our study consists of the full
parameter space of the LIV parameters (isotropic), i.e., six CPT violating LIV
parameters ($a_{\alpha \beta}$) and six CPT conserving LIV parameters
($c_{\alpha \beta}$). In this study, our objective is to calculate the upper
bound on all the LIV parameters with respect to the individual experiments and
their combination. Our results show that DUNE gives the best sensitivity for
the parameters $a_{ee}$, $a_{e\mu}$, $a_{e\tau}$ and $a_{\mu\tau}$ in its 7
years of running whereas ICAL gives the best sensitivity on $a_{\mu\mu}$,
$a_{\mu\tau}$, $c_{ee}$, $c_{\mu \mu}$, $c_{\tau\tau}$ and $c_{\mu\tau}$ in its
10 years of running. For $a_{\tau\tau}$, the sensitivity of DUNE and ICAL is
similar. The combination of T2HK, DUNE and ICAL, gives the best sensitivity for
$a_{e\mu}$ and $a_{ee}$ with respect to all the existing bounds in the
literature. For the CPT even diagonal parameters (isotropic) $c_{ee}$ and
$c_{\mu\mu}$, our work provides the first ever bounds.
