Query is vague, however, from the understanding of the available facts, yes, you can claim your share by filing a partition suit

sisters can file suit for partition to claim share in property 

2) take the plea that there are suspicious circumstances surrounding will

3) is the will attested by 2 witnesses 

4) what was age of parents at time of execution of will 

If it's an ancestral property and valid legal partition has done before 2005 then sisters will not hane share. Otherwise they will have share as per SC judgement on amendment of 2005

If WILL has been forged by brothers, file partition suit in court. Court will order WILL invalid and grant partition in all equally.

If it's ancestral property than it can be challenged in the civil suit. As per Hindu succession act.

If it's self acquired property and that WILL is unregistered than WILL needs to probate from court.

The property was owned by your parents who died and hence the property would be divided as per the law. The will is illegal and hence should be challenged.

The property left behind by the deceased owner shall devolve equally upon his legal heirs on his intestate death. 

Therefore the suit filed by his daughter claiming her share in the property is legally valid and maintainable. 

If property is ancestral then daughter can claim share by filing partition suit.

Consult local Property lawyer in this regard .

1. Yes will can be challenged but only on ground that it was made Under some influence or by fraud because it was registered will 

2. If will found to be false then sister can get share from that property.