"He was given two or three chances to join the probe. Today also he was called for questioning, but he failed to appear," said a senior police officer.
Col Ahlawat was served notices for questioning at his Delhi and Haryana addresses but he was untraceable, he said, adding that he will be arrested if he again fails to appear for questioning.
The IT officials had rescued a 23-year-old Russian national from his residence. The woman had tried to slash her wrist. The SMSes and WhatsApp data of the woman's mobile phone indicated that she was being kept against her will. Her travel documents including passport were allegedly taken away by the accused.
Sanyal was arrested while Ahlawat, who had introduced the Russian woman to Sanyal, was questioned at that time but neither detained nor arrested, police said.