The Index, prepared by State Vigilance and Anti-Corruption Bureau, reveals that LSGD department accounts for 10.34 per cent of total corruption in government sector in the state.
The Revenue Department with 9.24 per cent share in overall corruption comes second while the police department accounts for 4.66 per cent.
The KAI categorises departments as those with very high corruption, high corruption, medium corruption, low corruption and very low corruption.
Public Works (5.32 per cent), Health (4.98 per cent), Transport (4.97 per cent), Education (4.72 per cent), police (4.66 per cent), Water Resources (3.65 per cent), Food Civil (3.50 per cent), Excise (2.86 per cent), Mining (2.78 per cent) are some of the 13 departments that come in under the 'very high corruption' list.
Election, Science and Technology, Information and Public Relation, Non-Resident Keralities Affairs (0.25 per cent), Parliamentary Affairs (0.31 per cent) are the least corrupt departments in the state.