There are EVMs and EVMs.
So...
Under the obtaining Indian conditions, going back to paper ballots may very well turn out to be simply disastrous.
This would open up large rooms for manipulations at the points of polling and, maybe, even at the stage of counting.
Here're two very informed, and fairly exhaustive, write-ups:
However, to be sure, constant review of the latest developments is a must.
Moreover, cross-checking of the EVM result with physical counting of only 5 EVMs per assembly constituency appears to be woefully inadequate.
All in all, efforts should be directed at plugging the, possible, loopholes of the EVMs -- not trashing these outright.
That could be simply suicidal.
Just to add, the West Bengal assembly poll in 2021 was an indicator enough that at least till then the regime was unable to manipulate the EVMs to any meaningful extent.
Not to forget, Shah was virtually camping in West Bengal and, for that matter, even Modi. Central forces were widely deployed and allegedly misused.