Comparison of two drugs ( inj dexmedetomidine and inj clonidine) in terms of recovery from anaesthesia

Intervention1: Dexmedetomidine and Clonidine: Drugs to be given before the end of surgery as infusion over 10 minutes Control Intervention1: Injection Dexmedetomidine: Injection Dexmedetomidine 1 Microgram / Kg at the end of surgery as infusion over 10 minutes Control Intervention2: Injection Clonidine: Injection Clonidine 3 Microgram /Kg as infusion over 10 minutes at the end of surgery Primary outcome(s): Haemodynamic stabilityTimepoint: Intraoperatively (1- 3 hours) Study Design: Randomized, Parallel Group, Placebo Controlled Trial Method of generating randomization sequence:Computer generated randomization Method of allocation concealment:Sequentially numbered, sealed, opaque envelopes Blinding and masking:Participant, Investigator and Outcome Assessor Blinded