How to convert SQL query to linq using C#?

Select b.DISTRICT,b.TEHSIL,b.UID,b.BeneficiaryFullname,b.BeneficiaryRationCardID, b.Gender
from
(
select BeneficiaryRationCardID, min(DOB) as MaxAge
from BPLFamilyDetails where gender='F'
group by BeneficiaryRationCardID
) a
inner join BPLFamilyDetails b on a.BeneficiaryRationCardID=b.BeneficiaryRationCardID and a.MaxAge=b.DOB
inner join
(
select x.BeneficiaryRationCardID
from BPLFamilyDetails x
left join (select BeneficiaryRationCardID from BPLFamilyDetails where UID is null) y on x.BeneficiaryRationCardID=y.BeneficiaryRationCardID
where y.BeneficiaryRationCardID iS null
group by x.BeneficiaryRationCardID
) c on a.BeneficiaryRationCardID=c.BeneficiaryRationCardID
where b.Gender='F'