History is written by the Victors.
Pakistan army is meant to have killed 3 million civilians whilst fighting on all fronts against rebels backed by Bharat in 9 months. Sure maybe 3 million were killed but Pakistan Army could not physically do this.
Bengalis and Biharis loyal to Pakistan were killed by rebel forces and it is possible this number was added into the mix.
Says who???
Feel free to challenge sources on wikipedia
https://en.wikipedia.org/wiki/The_Holocaust
the number of Jews dead was close to 6 million.
2.5 million Soviet POWs were starved to death
2 million non-Jewish Poles were killed in concentration camps
Add Gypsies, mentally retarded and homosexuals