Cobrapost is a non-profit Indian news website that was founded in 2005 by Aniruddha Bahal – the co-founder of Tehelka. It is particularly known for its undercover investigative journalism.

According to Kalyani Chadha, Cobrapost led by Aniruddha Bahal consolidated undercover sting-generated news genre in India in 2005. Its secretly recorded conversations with 11 elected members of Indian parliament who were aired by Aaj Tak. The news piece showed how bribes can manipulate the proceedings of the Indian parliament.

In 2005, along with Aaj Tak, Cobrapost conducted a sting operation that exposed eleven members (MPs) – ten from the Lok Sabha and one from the Rajya Sabha – accepting money for tabling their questions in the Parliament of India. The MPs allegedly accepted between ₹15,000 (US$180) and ₹110,000 (US$1,300) as bribes. This investigation led to expulsion of eleven MPs from the Parliament, the largest expulsion of MPs in the country's history. The eleven MPs expelled in December 2005, after Cobrapost's sting report, were from four political parties: seven from the Bharatiya Janata Party, two from the Bahujan Samaj Party, one from the Rashtriya Janata Dal and one from the Indian National Congress.

In 2007, a Rajya Sabha committee headed by Congress party leader Karan Singh stated that Cobrapost abetted corruption by offering a murky deal to the members of parliament. It filed a criminal complaint (FIR) against Cobrapost and Aaj Tak for the "offence of abetment as defined under Section 12 of the Prevention of Corruption Act 1988 by carrying out Operation Duryodhan and telecasting the same", according to The Times of India.

In a 2010 sting operation conducted in association with the IBN group, Cobrapost alleged that Kanwar Deep Singh was elected to India's Rajya Sabha from Jharkhand after he bought the votes of the state's members of legislative assembly (MLAs). According to The Times of India, the IBN-Cobrapost exposé allegedly showed MLAs from the Congress party, the Bharatiya Janata Party, and the Jharkhand Mukti Morcha asking for bribes "to the tune of ₹1 crore (US$120,000) from middlemen in exchange for their votes in favor of a Rajya Sabha candidate". The Jharkhand Mukti Morcha dismissed the allegations in the Cobrapost report because it lacked any credibility.

In March 2013, Cobrapost alleged that three banks in India – HDFC, ICICI and Axis – were involved in money laundering, using false accounts to convert black money into white.

In an undercover operation it called Operation Red Spider, Cobrapost stated that it had secretly recorded several videotapes to uncover corrupt practices at the three banks, after its staff posed as a minister's aide. According to The Hindu, while it cannot vouch that the Cobrapost videotapes were authentic, the tapes show that the employees of these three banks were offering to convert black money into white. Each of the three banks issued a press statement that denied the allegations and offered their cooperation in any investigation, according to The Hindu newspaper. After Cobrapost allegations were made public, the Indian Finance Minister P. Chidambaram stated that he had talked with the chairmen of two of three banks and his office "wasn't jumping to any conclusions".

According to Cobrapost, the staff at the three Banks offered to use forged Pan Cards and multiple accounts for their clients to launder money. It added that the banks offer their clients to use their bank lockers to store cash and "maintain fictitious accounts for seven years saying that all details vanish after this period."