Samajwadi Party leader Amar Singh Friday appeared before the Delhi police in connection with investigations into his phone tapping allegations.

Singh, summoned by the police, reached the Special Cell office at Lodhi Road at 1400 hrs, police sources said.

The Samajwadi Party general secretary had alleged that his phone was being tapped at the behest of Congress leaders.

Police have arrested three people, including two private detectives, one of whom is believed to have forged sanction letters for Singh's phone surveillance.

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