Thank you again Advocates K.K. Ganguly, T. Kalaiselvan, Ravinder.P and all the others who has responded. Sir, I tried to keep it very brief in the beginning as people might avoid transcriptts which are very long. There are further issues but at least now I have the idea that amendment is the best way. In fact I drew the attention of my lawyer to all this from before the time of start of trial in this case. He dilly dallyed in the beginning and after trial commenced he said there is problem with Order 6 rule 17 and advised me to sit tight and later say everything in my examination-in-chief.
Sir, I am not a lawyer and cannot be expected to know all legal conotations and pitfalls. In fact thanks to the internet and forums like yours, I am recently learning bits and pieces about this vast legal world. Therefore I would be interested to know whether stating that faulty analysis by lawyer failed to safeguard client's interests in the long run insomuch as his case has now become contra interest can take part of the "due diligence" portion of order 6 Rule 17?
Additionally Advocate T. Kalaiselvan has advised to "file a separate partition suit on the latest discovered document". Does this mean that I should withdraw my counterclaim Partition suit and file a new and separate one instead?
And Advocate Ravinder. P, on the basis of the unregistered family settlement we are all staying in the premises for the past 50 years. Therefore this unregistered family settlement is a compromise document as well as fully implemented and all current possessions are as per this document. Maybe my lawyer chose to disregard this as he was unaware of the validities of even a unregistered family settlement. Therefore as you can see my lawyers insufficient information has put me in quite a bit of a soup.
Again thank you everybody in your efforts to help me out.