The vigilance department has deployed a sufficient number of employees for this task, the chief minister said.
If necessary, Delhi Police personnel would also chip in, he added.
"Every citizen is now an anti-corruption crusader (in Delhi)," he said.
The helpline would function from 8 a.m. to 10 p.m.
Kejriwal had announced after taking oath Dec 28 that he would announce a helpline soon to trap bribe takers.
He said the project got delayed as he found the anti-corruption department was badly understaffed.
