MUMBAI, Dec. 3 -- Sun Pharmaceutical Industries Ltd founder and managing director Dilip Shanghvi and his brother-inlaw Sudhir Valia engaged in financial irregularities with Dharmesh Doshi, a key figure from the 2001 Ketan Parekh scam, a whistle-blower alleged.

The whistle-blower made the allegations in a 150-page letter sent to the Securities and Exchange Board of India (Sebi), which had banned Doshi and Parekh following the 2001 scam, India's second biggest stock exchange scandal. Doshi is a former associate of Parekh.

A whistle-blower has also written to Mint with a similar set of allegations. It could, however, not be ascertained whether it was the same person who wrote to Sebi.

Mint also could not independently verify the allegations...