No govt.  Authorities certify family tree/member certificate. 

Get it verified by some professional agencies expert in this field. Like any genealogist if any available. 

You can obtain legal heir certificate from revenue office of your locality. 

Approach Office of the Sub-Divisional Officer,
9th Floor, Administrative Building,
Bandra (E), Mumbai.

for issue of family member certificate 

2) 

Required Documents

• Application form.
• Your identity documents such as Permanent Account Number (PAN), Ration  card, Aadhar card
• Ration card, EPIC Card
• Aadhaar card
• Date of birth certificate such as 10th Standard certificate
• Death Certificate (of the deceased)
• Proof of residence such as Voters card, Electricity Bill, Telephone Bill
• Passport size photographs
• A Gazette officer attested and duly signed bond paper on the pro forma.

Apply Online

• You can either apply at meeseva counters or apply online.
• Enter the URL https://www.mahaonline.gov.in/Home/Index by using a browser such as Internet Explorer, Mozilla Firefox, and Google Chrome etc.
• Click on Citizen Services.
• In the Citizen Services page, click on Individual section and Heir Ship subsection
• Form for the Application for Issue of Heir Ship Certificate / Family Members Certificate gets opened in a separate window.
• Print the application form or apply online.
• Complete the application form, sign, and affix an INR 2 stamp on the form. 

Don't pay 15000/- the official fee is not much

Office of the Sub-Divisional Officer,
9th Floor, Administrative Building,
Bandra (E), Mumbai.
Ph : +[deleted]

Apply In-Person

1. Applicant can approach respective Sub-Divisional Officer/Dy. Collector office to apply in person.
2. Link for the office contact details: [1] AND Link please select the district as per the map to reach next page. In the given page please select menu option “ABOUT DISTRICT” > “Who’s who” to get contact details.
3. Application form can be obtained from the office while applicant visits. OR Applicant shall write an application on an A4 paper. Please affix the advised stamp on the paper as per requirement.
4. Please go to the respective office and submit the completed application form along with the required document to the respective authorities.
5. Authorities after receiving the application will check the attached documents and details. If all are in place, they will make entries in their registry and provide you record number for reference.
6. Tahsildar OR respective authority will assign the application for further processing to the Village Administrative Officer (VAO) and MRO OR the authorities concerned.
7. There will be a ground level verification and scrutiny of the documents and details will be made against the details provided by the above authorities.
8. Once the verification is over, these officials will submit their report to the Tahsildar OR respective authority to decide and issue the Certificate to the applicant with the names of all legal heirs of the deceased.
9. Applicant will get the certificate after due verification

Note : In some cases applicant might be asked to contact a lawyer in District Civil Court to get it done.

- You can obtain a Family Member Certificate by applying personally after applying in the office of the Tehsildar/sub-Registrar of area.

- You should have valid documents such as ration card, pan card, voter id card. , passport size photographs with the application

- Further you can also apply online as well without giving any amount illegally to anyone on the website www.mahaonline.gov.in

Hi

That's bribe.

Which is illegal to demand and give.

Apply through proper procedure and if action not taken then complaint to higher authority. 

Thanks 

You can approach the revenue department/Tahsildar within your residential jurisdiction.

If a government official is demanding money for this then you can get him trapped by giving a complaint with the DVAC police who will get into action  to nab the culprits. 

1. Just simply fill in the relevant forms and attach all the relevant documentary evidences (Birth Certificate, PAN, Aadhar, Ration, Election cards etc.... alongwith the prescribed fees, with the Tahsil office.  Take rubber stamp acknowledgment of the dept., on your set of copy.

2. Wait for 30 days, IF you do not receive, THEN simply file an RTI application asking for certified copies of the requested documents and reasons for the delay in issuing you the certificate.

3. Legally the above is sufficient for your purposes, instead of paying bribes and avoiding corruption.

See you can approach the Tehsildar/Mamlatdar office for same and can obtain an family member certificate. The Talati will report on same but the 15000 sum he is asking is not as per the law. 

He is asking for bribe. Complain to ACB.

You family member certificate or legal heir certificate. Family members can prove ration card ? Just apply in written for certificate than he have to issue it. Or complain to collector. 

You can obtain a Family Member Certificate by applying in person and online. You should have valid documents such as ration card, pan card, voter id card. You should manually complete the application forms and submit in the respective MRO office of your area.

1. You have to approach revenue department/ taluka office for getting the certificate.

2. The officer is asking for bribe as fees for this certificate is not 15 K. You can make complaint to senior officials.