According to a senior government official, one Lal Singh, who was a principal of Government Co-Education Senior Secondary School in Chawala area in 2012, allegedly made "forged LTC bills" which run into Rs 1,64,883.
"It was found that instead of booking air tickets through authorised travel agent, Lal did the same through private travel agent. Lal has confessed to preparing forged LTC bills.
"We have imposed a fine on him which will be deducted from his pension," a government official said in a statement.
"Deputy CM Manish Sisodia has ordered a probe in connection with the case," the government official said.