Conrad said he noticed the changes in security cover after he returned from New Delhi last evening.
Terming it as an act of 'insult to the post' he held, Conrad said, "His securitymen were given obsolete .303 riffles instead of the modern INSAS riffles previously provided to them."
The state police denied any such move. "There is no question of reducing security cover to Leader of the Opposition," Director General of Police N Ramachandran told PTI.
He said security to all MLAs from Garo Hills region has been increased in view of the apparent threat from the Garo Hills-based Garo National Liberation Army (GNLA).
Asked on the weapon change, Ramachandran said, "There is no such instruction to change weapons and if there is any, that is internal arrangement within the department."
Security cover for Leader of Opposition was upgraded from X to Y category in August last year in the wake of increasing militant activities in the state.