Partition suit

My brother and i have filed for this Family partition suit against my Father where he claims that the property is self acquired and not Ancestral Property but we have written in our plaint that he was a Government Servant with a Fixed Salary and his wife was Homemaker , with his salary he bought multiple other properties so how it is possible for him to buy crores of Rupee this property in limited salary and that it was taken out of the Joint Family Fund by him as he was karta and the grandfather told him to buy the said property in his name and later divide it among his children . The court presumed that it shall be his self acquired Property and that we have to prove now that its Ancestral Property, in the meanwhile the court gave a Lis Pendens Order and he has sold it to some other person, so in this case how to prove it was ancestral since father had lot of Corrupt Black Money and disprportionate asset so he is unable to prove its his self acquired and what might be the outcome (Judgement/Decree)