Legal Standing on the property title

Respected Sir, We are three brothers. Elder brother is a Plaintiff in the current case (who reside out of India) but the case has been filed by my Younger brother on his behalf thru his college friend while as he being the Defendant no.2 in the case filed by him in the year 2007. # In one of the registered property with the registrar in the Year 1990 in the name of defendant nos.1 & 2 wherein Plaintiff is the witness to the purchase of this property when my mother was alive as he was staying & working in India in those days. Plaintiff is now claiming that this property has been purchase out of parent/father sold property wherein defendant in collusion with Plaintiff is supporting his stand & does not want to cross examine the plaintiff during the trial as he himself has prepared & put the case on his behalf thru one of his college friend. This case has been put up by them in collusion with each other after 15 years. Plaintiff had confirmed before the trial court that at the time of purchase he was present and without his consent it was not have been purchased in the name of Deft Nos.1 # 2. The documents such as Affidavit, Power of Attorney etc in which he had signed the documents as an one of the witness. # Here I would like to know the legal stand on the following: a) Impact of law of limitation for Plaintiff claiming after 15 years of property purchased. b) Impact of Benami transaction Act 1988 with reference to this property. c) Plaintiff stand before trail court that this property was purchase in the name of Defendants with his consent & he had signed the documents as an witness. Impact on above three alphabetical points separately as well as in combination of these points too, if possible, with supporting of any earlier judgement regarding this. Thanks & Regards, Sanju