  At the LHC energies, the underlying observables are of major topic of
interest in high multiplicity $p+p$ collisions. Multiple Parton Interactions
(MPI) is one of them, in which several interactions occur in a single $p+p$
collision. It is believed that MPI is the main reason behind the high
multiplicity in $p+p$ collisions at the LHC. It was believed that MPI has only
effect to the soft particle production, but recent ALICE result reveals that it
can also affect the hard-particle production. In such case, the self normalized
yield of heavy particle like $\rm J/\psi$ shows an increasing trend with event
multiplicity. In the present contribution, we discuss the energy and
multiplicity dependence of charmonium production to understand the effects of
MPI on charmonium production.
