Karishma was talking to Upen in restroom. (This was when they are getting ready for the Saturday recordings)
Upen asking about Karishma's family.
Karishma said her sister had a 11 year old kid and now a 7 month old baby. they talked about age gap and how her sister is busy and how her mom is alone. So Karishma wants to know from Bigg boss how her mom is doing because her mom is weak and Karishma even though youngest in her family is the strongest. Even when her dad was there, she enjoyed being independent etc.
The she goes to that mirror and requests bigg boss for information about her mom's well being.
Then she notices a crack in the mirror and she shows it to Upen.
Upen and Karishma observe the crack and Karishma says that looks like the crack came from other side of the wall where camera man must have done it.
Now I think that the mirror is already cracked, and Gautam must have punched it, then it broke easily.
It probably would not have broken if the glass/mirror was intact from the beginning.
This is something that I am thinking (connecting the dots from livefeed and episode)
It is unfortunate that Gautam went to the same mirror.
I dont think that that guy has guts to destroy Bigg boss property on purpose. It is a mixture of events.
I did not see the episode. I still reserve my opinion till I see the actual episode.