Tender For providing of air quality monitoring service - indoor area; contract for collection and analysis of stack flue gas samples from 13 stacks (to be done bimonthly as per guidelines); bi monthly,air quality monitoring service - indoor area; plant , collection and analysis of incinerator flue gas; bi monthly,air quality monitoring service - indoor area; plant , collection and analysis of incinerator flue gas; once in six months,air quality monitoring service - indoor area; plant , collection and analysis of flue gas ex diesel genset engine stacks; yearly,air quality monitoring service - indoor area; plant , collection and analysis of treated effluent; monthly,air quality monitoring service - indoor area; plant , collection and analysis of ground water; yearly