Hi
1) With reference to 3.38 Acres, your title will be perfect given that
a) The lady has got by way of inheritance from her husband and in accordance to Hindu succession law, a property in the name of the woman is her absolute property irrespective of how she acquired vide section 15 of Hindu succession act and
b) That the sons have joined their mother in the execution of sale deed in your favour and
c) that the daughter had executed an affidavit wherein her brother and another well known person ratifying the sale deed.
2) With reference to 2.06 acres, since the property was obtained by the lady by way of gifts from her relatives, the same will be her absolute property and children do not have any rights on the properties.
3) As such your title is perfect and if the daughter is challenging the affidavit, you can file a suit for declaratory title and permanent injunction under Order 38 of CPC and also obtain temporary injunction against the daughter by filing an Interlocutory application under Order 39 of CPC.
4) In your case, it is very clear that your title is perfect and that the daughter has become greedy because of price rise.
5) Also since you are in possession of property since 2016 and have taken care to convert from agricultural to non agricultural and have also taken 100KVA power, you can easily prove possession and get injunction against the daughter and also win your case .
6) Please note filing of case against the daughter is recommended so as to keep the daughter away from the land and avoid harassment by the daughter.
Hope this information is useful.