Apart from Singla, notices were issued to SAD candidate and Rajya Sabha MP Sukhdev Singh Dhindsa and Aam Aadmi Party nominee Bhagwant Mann, an election office spokesman said here today.
The notices were issued by District Electoral Officer-cum Deputy Commissioner Kavita Singh.
They have were directed to respond within 24 hours.
Singla is accused of getting published paid news in a newspaper while Dhindsa was allegedly found accompanied by more than five persons while filing his nomination papers yesterday.