Stay order against foul will by parents!

If the elder brother has invested in acquiring the property, he can initiate a civil action. But there could be no certainty as to outcome. The provisions of Prohibition of Benami Property Transactions Act could be applicable in the given facts.

Sir, thanks for your opinion. How to get certified copy of the purported registered Will necessary to understand it's content and false narrative cooked up in it. Regards 

You may please note that the Will shall come into force only after the lifetime of the Testator and not before that, hence even if you are managing to get a copy of the registered Will, you cannot challenge the same in court of law because it is not valid at this stage when the testator is alive.

The testator can change or cancel the Will anytime during his/her lifetime. 

If you feel tht you have contributed to the purchase of the property and feel deprived of your rights in the property, you can gather documentary evidences to establish your claim and file a suit for partition cl;aiming your rightful share, if any, in the property with separate possession, the court may decide the case on merits.

Very well analysed, opined and advised by learned senior experts, I concur and nothing more to add.

As observed from your profile it is not your personal problem vis-a-vis query.

File suit for possession and partition in court to get your share in property and you can also challenge said will in court.