To establish guilt in any crime, one needs to not only present evidence but also establish the motive.
The creatives are busy building of the evidences from figments of their imagination (which by the way is more like a nightmare). They have an orphanage record which shows one set of names, that of Prachi Misra and Rithweek, when in existence and another set of names, that of PrachiShah and Ritwik, when destroyed (ie., as Prachi recollects it). Maybe Prachi thought she wrote Prachi Shah when she had actually written Prachi Misra out of sheer force of habit. That can explain the discrepancies.
As to why Prachi Misra did not ring a bell for Ayesha all we can think of is that she has lost her senses after she realised Michi had done 'it'. So no use reasoning with her.
Why did Milind Misra not question about Prachi Misra? Because he was blind with anger at Ayesha for daring to say such an accusation about his wife. So did'nt pay much attention to what was written there.
Now having cleared the name confusion, lets go to the next piece of evidence - Kamini. It is a real stroke of luck that every time Ayesha meets with a dead end in her endeavour to unravel the truth, this girl springs up, be it at the dance bar or the middle of the road. Only hitch is that this girl may help in proving that the baby in not hers and that Prachi paid her to act as its mother. But that does not establish that Prachi is indeed the mother, does it?
So more evidence is required. Why not the hospital records. But how to get Prachi to realise that needs to be changed as well. Get Kamini to escape and inform her of how smart Ayesha really is. Now Prachi recollects the hospital name and makes a dash for it before Ayesha does (thereby ensuring that ayesha really gets wise - the poor creature was wondering what to do now that Kamini has escaped and there is Prachi helping her out. After all she did play cupid and brought Michi together did'nt she? So Prachi si returning the favour) What she does there is anybody's guess.
The heights of stupidity or overconfidence of Prachi would be to replace her name in the place of suki instead of a fictitious one. Dont ask me how the hospital will allow her to change their records. We are dealing with absolutely unethical institutions here (be it the orphanage or the hospital. Helps if you pick a missionary one at that. Priests and nuns will not fight you in a court of law for demeaning their institutions. Afterall Christianity emphasises forgiveness does it not?
Back to the topic, so the hospital record is on the verge of being changed. If all this fails to convince a hard headed shrewd businessman like Milsi, there is the DNA test. They gave a hint of this when they showed Milsi defending Prachs saying all these records can be written as well changed so it proves nothing. Now science has to be brought into the picture - not mundane basic physiology that deems that the woman as the carrier of the child will find it difficult to hide her pregnant stomach amidst the full glare of the world - but sophisticated DNA test.
Obviously if the real hair and blood are matched they cannot proved Prachi's motherhood. So why not have the child pull Suki's hair before she embarks on her honeymoon. Will ensure some poetic justice for the child who manages to hurt Suki for leaving him and it will also pin Prachi down. Why bother explaining how these strands will still be lying around after two days. Maybe the Misras/Shah/Shergills are not very hygienic people - dont believe in cleaning their house every day.
All possible hurdles to this master plan of making Prachi a mother have been removed : Suki -on honeymoon, Baba - in hill station. Shahs can be discounted because they are an interested party. Their evidence is inadmissible in Milsi's court of law.
Kudos to the creatives for thinking of just about anything to seal the fate of Michi. But have they really thought of everything? Lets once buy all their arguments and evidences. But what about the motive? why should Prachi hide her pregnancy and childbirth especially if the father was Neev. Was she not engaged to be married to him? Even if we take it that Prachi realised she was carrying Neev's child after she got engaged to Varun and so hid the pregnancy, when that marriage did not take place and Neev indeed was to marry her, she could have revealed it. In fact that would have only served in hurrying up the wedding. And if she was carrying Neev's child why break up with him in the first place? Would she not want her child to have a father? It is not like Neev fell in love with Ayesha and married her. The whole world knows that the two despise each other.
Why should she deliver the baby clandestinely, wait for Milsi to propose to her, marry him, patiently bear with all the pain he put her through physically and mentally, win his love over a period of time and then bring the kid into the house. What is the motive of this elaborate drama? Really beats me.
If Milsi believes all these pieces of evidence which have suddenly sprung up over all the evidences of Prachi's goodness over the last three month period, if he does not question the lack of motive for this insane acts, and as a result ends up punishing Prachi, then all we can say is Michi really are not meant to be.
Sorry about this looong post.