How can Anupama be so dumb? She was the 1 who warned Anuj not to feed milk to that poisonous snake (Toshu) (Offer a job to Toshu in his company). And now the same Anupama who had warned Anuj is feeding milk to that poisonous snake (Toshu) (Offer a job to Toshu as waiter in S & C). This is Anupama's biggest mistake. Anupama had invited that poisonous snake (Toshu) to bite her as well as her other colleagues Vikram, KD, Rahul and YD. Snake will remain as a snake wherever it is. Its nature is to bite.
Anupama had failed as a mother by "attaching" herself to the kitchen all the time. She had failed to prevent Toshu from becoming a poisonous snake. And another poisonous snake (Vannu) had given full support to his snake like son (Toshu) in his evil ways. Bapuji was a mute spectator to these unfortunate happenings. I would not blame Anupama for Toshu becoming a poisonous snake. This snake (Toshu) has seen another snake (Vannu) biting Anupama. And now this snake (Toshu) is ready to bite Anupama as well as her other colleagues in S & C. Toshu reminds me of Ashwasena from Mahabharata.
About Ashwasena : https://jayarama.wordpress.com/2010/06/22/the-revenge-of-takshaka-and-aswasena-on-arjuna/