How is Sara wrong?

VD often mentions that KVM is younger than him. According to Wikipedia he was born in 1988. That means 35-36. Then KVM should be at least 34. If I go with KVMs Wikipedia age KVM is 41 VD can't be less than 42. Avinash is 30. Eisha 25, Alice is 26 according to Wikipedia. Sara is 37.

Now the question should be how old was his mom when she had him?In India woman usually marry after 18. Childbirth takes almost 1 year. 19-7=12 will be the difference between his mom and Sara. If Sara is his mausi what is he? Naani Amma ke beta?

Avinash calls KVM chacha who is just either 4 or 11 years older than him. Papa ka Shaadi kab hua tha aur kab jsko payda kia? If his father was 22 when he had Avinash then he should be the son of nanajee.

How is Sara wrong if she asks " maa ke pet se Aya ?"As far as his calculation he is the son of nana and naanijee.