Pal, who was summoned by the CBI three days ago, presented himself at the investigation agency's regional office here, a CBI official said.
According to the official, Pal was involved in "financial transactions" with the Rose Valley chit fund organisation.
"Pal would be interrogated regarding his alleged involvement in the financial transactions with Rose Valley," the official said.
He was summoned by the agency on Tuesday along with Trinamool Congress MP Sudip Bandyopadhyay for interrogation in relation to the ponzi scam.
Following the summon, the Trinamool Congress accused the central government of doing vendetta politics and using central agencies to scare the party as they were protesting against the Centre's demonetisation move.