You may get legal heir certificate from the following office if for any reason they do not issue then get file application for issuing succession certificate under Section 372 of Succession Act.
FAMILY GENEALOGY FAMILY TREE IN KARNATAKA/
(SUCCESSION CERTIFICATE MAY ALSO BE OBTAINED UNDER SECTION 372 OF SUCCESSION ACT)
Please go online and apply for this application.
The link is under "Nadakacheri" website.
1- It will only cost you 15 Rupee Per Application.
2 - Ex : Lets say "dad" has passed away, and mom is applying for family tree certificate, you need to include mom's name and sibling's name while applying .
3 - You need to get the estamp paper number before you apply.
You can contact the Notary or Some typing location near notary, they will help you with the contents.The affidavits need signature from Mom and siblings.
4 - On the portal , you will find the documents to submit .
Voter card , Aadhaar card, Death Certificate, Pan Card, Rationcard documents should be enough for you to get this . You need to upload your mom's documents.
5 - On nadakacheri website, you will get attestation for the family tree. The attestation is done by the revenue officer.
6 - As all government departments work, you might have to pay something extra.
7 - You might get the documents in a weeks time.
45, Dharmaraya Swamy Temple Rd, Halsurpete, Nagarathpete, Bengaluru, Karnataka -2, India
Section 372 in The Indian Succession Act, 1925
372 Application for certificate. —
(1) Application for such a certificate shall be made to the District Judge by a petition signed and verified by or on behalf of the applicant in the manner prescribed by the Code of Civil Procedure, 1908 (5 of 1908) for the signing and verification of a plaint by or on behalf of a plaintiff, and setting forth the following particulars, namely:—
(a) the time of the death of the deceased;
(b) the ordinary residence of the deceased at the time of his death and, if such residence was not within the local limits of the jurisdiction of the Judge to whom the application is made, then the property of the deceased within those limits;
(c) the family or other near relatives of the deceased and their respective residences;
(d) the right in which the petitioner claims;
(e) the absence of any impediment under section 370 or under any other provision of this Act or any other enactment, to the grant of the certificate or to the validity thereof if it were granted; and
(f) the debts and securities in respect of which the certificate is applied for.
(2) If the petition contains any averment which the person verifying it knows or believes to be false, or does not believe to be true, that person shall be deemed to have committed an offence under section 198 of the Indian Penal Code, 1860 (45 of 1860).
56 [(3) Application for such a certificate may be made in respect of any debt or debts due to the deceased creditor or in respect of portions thereof.]