re e-tender for procurement of vvir pacemaker for two years from the date of award of contract (aoc) , single chamber vvir pacemaker, permanent pacemakers with all leads and accessories vvir all single chamber modes and basic multi-programmable parameters with preferably autosensing and auto-capture/output management facilities. monitor the integrity of lead and switch polarity in case of issue. must have rate response which allows rate profile optimization. must have automatic threshold monitoring and output adjustment in ventricle. the size of lead should be 7f or less the lead must be steroid eluting and should be both bipolar and unipolar configuration must have both active and passive fixation endocardial leads available. warranty not less than 7 (seven) years on implantable pulse generator. , pulse generator , lead , pli