Bhumi - is actually an illegimate child conceived by Nandani due to Ansh.
Mayank and Nakul - are actually both Gautam and Damini's children... twins actually.... but since at some point Ganga couldnt conceive, Nakul was adopted...
After some years Ganga has a kid and is called Lakshya...
Eklavya - Ansh 's kid
Manthan is Karans and Tanyas Kid
Now... we have met
Krishna Tulsi
Manthan
Bhumi
Kisna(Lakshya)
Nakul
Nakuls Cousin
We are still missing....
Mayank - Gautams and Daminis kid, the other twin
Eklavya - who is played by the same charector as Ansh.
Mohinis and Harshs daughter
Still unspoken of (Karan and Nandinis child) - may have been kidnapped by Mandira and will appear later as a negative role like in case of Kasauti with Prem(this is my assumption know ekta)
and are we every gonna see????
Shobhas children
Savri and Bavri grown up?
The other gens children, like Karishma, Tarun and Deepak's children grown up
How easy it is to sign off charactors nah...
Ekta... when are u gonna learn...
IF you talk abt family and keeping it together... why the missing charactors???
Ok... Hemant and Pooja are in the US looking after the business there... but...
When there is an occasion in the family dont family come ? strange nah...
And anyways... your serials are never gonna be complete... cause either they never finish cause they keep taking 20yr leaps where ppl who have gone thro so much are still alive at the age of 104 or you introduce charactors and never talk abt them... therefore an incomplete story...
God Save Us....
Source: http://forum.indya.com/showthread.php?p=103344