Test fast bowler Shanthakumaran Sreesanth and three other players have been found guilty of spot-fixing during the Indian Premier League by an internal probe conducted by the national cricket board, a report said on Friday.

The probe by the Board of Control for Cricket in India (BCCI)'s anti-corruption chief Ravi Sawani, also found two other players guilty of not reporting approaches made by bookmakers, The Indian Express said.

Sreesanth, Ajit Chandila and Ankeet Chavan were found guilty on multiple accounts, including conceding a "pre-determined number of runs per over in exchange for bribes", the paper quoted the leaked report as saying.

The fourth player, Amit Singh, who played in the IPL till last year, was seen as the conduit between the cricketers and bookies, and described by Sawani as "the bad fish that spoils the entire pond".

Siddharth Trivedi and 21-year-old Harmeet Singh were absolved of spot-fixing, but were found guilty of the lesser charge of not informing officials about approaches made by bookmakers, the newspaper said.