This is from twitter
Dear Sri Krishna,Brahmanyan Sir
The answer lies in analyzing the vote percentage and not the seats ( i.e after results are declared officially ) . For eg in TN Assembly elections 2016 AIADMKI got just 40,000 votes more than DMK and they are successfully ruling and that was because the Vote was split by the Vijaykant led Group MNK ( Makkal Nala Kootani ) which got more than 1% vote and everyone said that it ( i,e MNK Front ) was sponsored by JAYA Herself through VAIKO to prevent DMK from Coming to power by splitting the opposition votes .
Now the same can happen at the Parliament elections in 2019 where the opposition parties are not standing fully unified and are scattered .So if BJP gets 35% vote Congress gets 30% vote and the scattered opposition gets 35% vote the winner is BJP even when the Combined anti BJP vote is 65% .
This will be more visible in States like UP which is going to be the decider . Whether Akilesh Mayawati helps checkmate Modi or helps him win by splitting the votes .
So we need to wait for the Voting Percentage to get the clear picture .
In essence when the opposition is scattered it only helps the ruling party mostly be it at the State of Centre .