  A series of recent papers have claimed that intranode scattering, alone, can
contribute to positive longitudinal magnetoconductance (LMC) due to chiral
anomaly (CA) in Weyl semimetals (WSMs). We revisit the problem of CA induced
LMC in WSMs, and show that intranode scattering, by itself, does not result in
enhancement of LMC. In the limit of zero internode scattering, chiral charge
must remain conserved, which is shown to actually decrease LMC. Only in the
presence of a non-zero internode scattering (however weak), one obtains a
positive LMC due to non-conservation of chiral charge. Even weak internode
scattering suffices in generating positive LMC, since it redistributes charges
across both the nodes, although on a time scale larger than that of the
intranode scattering. Furthermore, our calculations reveal that, in contrast to
recent works, in inhomogeneous WSMs strain induced axial magnetic field $B_5$,
by itself, leads to negative longitudinal magnetoconductance and a negative
planar Hall conductance.
