When you are buying individual stocks, there is not too much relation with the broader indices, although there will be some impact, more impact when Adani type news is coming. So when good fundamental stocks fall to near intrinsic value, many buy, hence the price movement, even in a bear market.
And then there is sector rotation, so even if the broader indices are down, a couple of sectors are in the rise, so price movement is seen here.
Of course, when the total situation is in the negative, the moves will be small and slow, because prices may fall more.