corrigendum - supply of water treatment chemical, lime and bleaching powder at pump house no-1 at eac ( u ) , af under ge ( i ) ( af ) shillong :-supply of calcium based granular disinfectant ( calcium hypo chlorite ) consisting 65%-70% chlorine content for water treatment packed in 45 kg drum factory sealed delivered at store yard of age e / m of ge ( i ) ( af ) shillong . make:- m / s sree rayalaseema or any other brand as approved by e-in-cs or any other brand whose product fulfills the parameters specified in manual on water supply and treatment ( third edition may 1999 ) issued by cpheeo , ministry of urban dovelopment , new delhi . , supply of inorganic soluble polymer powder ( poly aluminium chloride ) packed in 25kg factory sealed plastic bag delivered at store yard of age e / m of ge ( i ) ( af ) shillong . make:- m / s sree rayalaseema or any other brand as approved by e-in-cs or any other brand whose product fulfills the parameters specified in manual on water supply and treatment ( third edition may 1999 ) issued by cpheeo , ministry of urban dovelopment , new delhi . , supply of stable bleaching powder grade-i quality is-1065 marked in factory sealed packet delivered at store yard of age e / m of ge ( i ) ( af ) shillong . make:- isi marked , supply of super white unslaked lime best quality ( for use in purifying drinking water ) in factory sealed packet delivered at store yard of age e / m of ge ( i ) ( af ) shillong . , note for item nos 1 to 4 :- to ascertain that the product meeting all norms for human consumption and various codal stipulation , the manufacturer shall gurantee the authencity of the product by providing a suitable identification on the containers / packs alongwith a manufacturers test certificate which will be provided by the manufacturer or his authorised distributor at the distribution point for each batch of product delivered .