spec for design , manufacture , testing before dispatch and delivery of 2 , 80 , 000 no . 11 kv composite polymer disc insulators tongue and clevis type , ems 45 kn conforming to iec 61109 , is 731 , 1971 and as per pspcl t . e 2314 spec for design , manufacture , testing before dispatch and delivery of 2 , 80 , 000 no . 11 kv composite polymer disc insulators tongue and clevis type , ems 45 kn conforming to iec 61109 , is 731 , 1971 and as per pspcl t . e 2314 , 11 kv composite polymer disc insulators ( tongue & clevis type ) , ems 45 kn conforming to iec 61109 , is-731-1971 & is-2633/1972 ( with latest edition/ amendments if any ) and as per pspcl specification no . qq-2314/ pspcl/po-p , note: note: the firms should quote firm prices only and offers of firms quoting variable prices shall be out rightly rejected . notes:i ) if rate of gst is not given , the maximum applicable rate of gst prevailing at the time of opening of tender , shall be taken into consideration . ii ) in case quoted prices or any other declaration/ statement given in this annexure do not tally with the ones given in main tender or elsewhere , the ones given here shall be considered as the quoted price . iii ) any arithmetical error shall be considered to the advantage of the purchaser . iv ) the bidders shall not be allowed to indicate over all discount on the quoted price for which split up has been given . any firm offering discount of the quoted price or after the opening of tender will be out rightly rejected .