Their numbers were relatively few. It is impossible to verify the exact number of Hindus killed by Hasina's forces at this stage (if any). I recall one interview from DW News with a Hindu girl. Her name is Prapti something...
Let's see......here we go.
This is just one of them. There are more:
www.dw.com
Prapti Taposhi is on Facebook. Join Facebook to connect with Prapti Taposhi and others you may know. Facebook gives people the power to share and makes the world more open and connected.
www.facebook.com
I even found her Facebook profile.
She is not some random protestor. This girl appearing on international news channels says that she may be significant, or may be I am missing something.
Regarding the Hindu community, I would give them a benefit of doubt, but we must be vigilant. Since August 5th, I have noticed various pages on social media posing as "Bangladeshi Hindus" releasing vicious lies about the happenings in our country and against Islam and Muslims in general. These pages are very active and I dare say are radicalizing the Hindutva in India. I know it would be easy to say that the ones posting are likely Indian trolls, but unfortunately it is suspected that they are Bangladeshi nationals hiding behind monikers. Though, their handlers are likely Indian nationals.
What do you think?
Disclaimer - just my personal opinion based on my observation of social media activities.
Overall - participation of Hindus in the revolution were minimal. This is understandably so, given that most Hindus benefitted during the Hasina regime, so no change was better for the general Hindu population. Also, many Hindus are actively involved in BAL politics, and therefore had absolutely no reason to go against Hasina.
But, the handful few Hindu activists who stood up publicly, had significant impact on the revolution. I will name a few -
Pinaki Bhattacharya - although he is probably an atheist or agnostic than a devout Hindu, his voice has riled up the masses against Hasina for many years now. To the point, he had to flee Bangladesh to save his life.
Debashish Chakrabarty - he is a digital graphic designer. All those posters in black, red and yellow denouncing the dictator were his creation. His posters flooded social media and were also used on the streets both in Bangladesh and abroad. His posters served as a powerful tool to invigorate the revolutionaries.
Musicians Arnob and Shayan Chowdhury - their involvement attracted media attention.
Student leaders like Meghmollar Basu - who got a bit of fame by shutting down Indian media journalist trying to peddle the idea that this revolution was a Jamaat conspiracy. He explicitly stated that he himself was a Hindu and believed in the cause.
However, having said all that - the number of Hindus still vouching for BAL rule and how "better" off we were in the past is overwhelmingly greater than those who were pro Revolution.
And when we compare the number of Madrassah students and Shibir members killed alone, the contribution becomes even more visible. The disproportionate portion of the martyred revolutionaries had either Madrassah or Shibir or other Islamic party background.
Now, argument can be made that there are fake accounts operated by Indians to give the illusion that Bangladeshi Hindus are not happy, which brings me to the next point you noted.
While I agree that some FB accounts and pages may be operated by false flagging Hindutva VHP RSS members, but unfortunately there is a growing number of Hindutva ideology influenced Bangladeshis. To the point that VHP / RSS now has official branches in Bangladesh. These folks were usually also affiliated with BSL / Chatra League politics. They have been rapidly growing under the protection of BAL government.
Together with them we have the Uber secular leftists (both Muslims and Hindus) who are responsible for giving legitimacy to the BAL fascist regime.
These are the people who are involved in mass misinformation campaign post Hasina's fall in the international media and social media. In fact, they went as far as staging false flag operation in their own temples. There were 2-3 cases reported across the country where temple vandalism perpetrator turned out to be Hindu individuals.
This Hindutva propaganda cell concertedly amplified any attack on Hindu communities and suppressed information about Madrassah students protecting the temples or any positive news of Hindu Muslim cooperation. For instance, there were local Hindu priests praising Madrassah students and Jamaat members while meeting with Jamaat amir. But this was not picked up by the International media. The mainstream journalists are particularly to blame and it is not surprising that most mainstream journalists in Bangladesh belongs to that Uber liberal bunch.
To sum it up - Bangladeshi Hindus are 10+% of our entire population. However, if you look at the contribution both in terms of those who led the revolution or was an active voice in social media or who were martyred and injured, their numbers are significantly lower. There were contribution from the Hindu community, it simply wasn't proportional to the size of their population.