You should firstly have sufficient evidence to make a case against court authorities, so I would recommend you that you gather evidences against the concern person & record the same and FIR against him u/s 23 (wrongful gain) & Section 409 of Indian penal code pertains to criminal breach of trust by a public servant. The public servant shall be punished with life imprisonment or with imprisonment of upto 10 years and a fine and chapter 3 of prevention of corruption act, 2015 (amended). I think this must suffice your case.
The three main authorities involved in inquiring, investigating and prosecuting corruption cases are the Central Vigilance Commission (CVC), the Central Bureau of Investigation (CBI) and the state Anti-Corruption Bureau (ACB). Cases related to money laundering by public servants are investigated and prosecuted by the Directorate of Enforcement and the Financial Intelligence Unit, which are under the Ministry of Finance.
The CBI and state ACBs investigate cases related to corruption under the Prevention of Corruption Act, 1988 and the Indian Penal Code, 1860. The CBI’s jurisdiction is the central government and Union Territories while the state ACBs investigates cases within the states. States can refer cases to the CBI.
The CVC is a statutory body that supervises corruption cases in government departments. The CBI is under its supervision. The CVC can refer cases either to the Central Vigilance Officer (CVO) in each department or to the CBI. The CVC or the CVO recommends the action to be taken against a public servant but the decision to take any disciplinary action against a civil servant rests on the department authority. 
When filing a cases with the CVC, you can be rest assured that your identity wont be disclosed as per the Public Interest Disclosure and Protection of Informer (PIDPI) Resolution.
Here's a list of employee categories the Commission can accept complaints against:
• Central government ministries and departments
• Central government public sector undertakings
• Nationalised banks and insurance companies
• Autonomous organisations created through an Act of the Parliament or under the administrative control of Government of India, like All India Institute of Medical Sciences, Port Trusts and Delhi Development Authority
• Centrally administered territories including Delhi, Chandigarh, Daman and Diu and Puducherry
• Societies and local authorities owned or controlled by the Indian government
You can write a letter to them at:
CENTRAL VIGILANCE COMMISSION
Satarkata Bhavan , A-Block
GPO Complex , INA
New Delhi - 110 023
EPABX :- 011- 24600200 (30 Lines)
FAX : 011- 24651010/24651186
Email : firstname.lastname@example.org
Or mail them at http://portal.cvc.gov.in/portal/web?or
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