Guwahati, Nov. 10 :     Former Punjab director-general of police K.P.S. Gill today said the question of tutoring Assam on the ?doctrine of secret killings? did not arise as he personally did not employ any such tactic to eliminate Khalistani terrorists. Gill told The Telegraph over phone from Delhi that ?secret killers? were not let loose in Punjab during his tenure, which is why ?the question of Assam making my doctrine of secret killings an organ of counter-insurgency operations does not arise?. The retired IPS officer?s adversaries have accused him of influencing the Assam government into experimenting with the ?Punjab experience?, a euphemism for extra-judicial killings. He has also been accused of ?active involvement in the preparation of a blueprint last year to raise a force of secret killers? to eliminate the kith and kin of Ulfa activists and sympathisers of the proscribed outfit. ?My interpretation of the jargon ?secret killers? is that they are hitmen patronised by someone with vested interests. Secret killers may be let loose to carry out extra-judicial executions,? Gill said. However, he insisted that there were ?no secret killers at the disposal of the Punjab government during my tenure?. Asked if the ?secret killers? in Assam were akin to the ?kalekachewalas (men in black underwear)? who were on the prowl in Punjab during his tenure, Gill said, ?The kalekachewalas were from a criminal tribe who carried out brutal murders.? The modus operandi was simple ? the kalekachewalas raided the houses of terrorists, killed their family members and set the buildings ablaze before fleeing. The police force, renowned for its efficiency, surprisingly failed to apprehend the killers on every occasion. The trend of ?secret killings? began in Assam with the killing of Dimba Rajkonwar, 55-year-old brother of Ulfa chairman Arabindra Rajkhowa, in August 1998. It is estimated that over 100 people have been killed in similar fashion over the past 14 months. Towards the middle of last year Gill visited Assam for ?promotion of hockey?. Each of his visits to the state was viewed with suspicion, particularly by human rights organisations. Whenever Gill came to the state last year, it was in his capacity as the chief of the Indian Hockey Federation. But he raised eyebrows by either meeting chief minister Prafulla Kumar Mahanta or the police and Army top brass during each of his visits. ?The police force in Assam has so many efficient officers that it does not need my services while devising counter-insurgency strategies,? Gill said. ?One must realise that all killings are secret killings. One who has killed would obviously like his identity to remain a secret. At times, killings are owned up to for mileage. But it does not mean that one who owns responsibility for a particular killing has actually carried it out,? he added. There was a proposal to appoint Gill as the security advisor to the Assam government. However, the move was stymied by a section of the ruling Asom Gana Parishad. The opposition was based on the former Punjab DGP?s controversial stint in Assam during the mass agitation.