GAIL (India) Limited MECON LIMITED

carried out by the CONTRACTOR on the same conditions in allrespects on which he agreed to do the main WORK. The time ofcompletion of WORK may be extended for the part of theparticular job at the discretion of the ENGINEER-IN- CHARGE,for only such alterations, additions or substitutions of the WORK,as he may consider as just and reasonable. The rates for suchadditional, altered or substituted WORK under this clause shall beworked out in accordance with the following provisions:-I. For Item Rate Contracta) If the rates for the additional, altered orsubstituted WORK are specified in theCONTRACT for the WORK, the CONTRACTORis bound to carry on the additional, altered orsubstituted WORK at the same rates as arespecified in the CONTRACT.b) If the rates for the additional, altered orsubstituted WORK are not specifically providedin the CONTRACT for the WORK, the rates willbe derived from the rates for similar class ofWORK as are specified in the CONTRACT forthe WORK. The opinion of the ENGINEER-IN-CHARGE, as to whether or not the rates can bereasonably so derived from the items in thisCONTRACT will be final and binding on theCONTRACTOR.c) If the rates for the altered, additional orsubstituted WORK cannot be determined in themanner specified in sub-clause(s) and (b) above,then the CONTRACTOR shall, within 7 days ofthe date of receipt of order to carry out theWORK, inform the ENGINEER-IN-CHARGE ofthe rates which it is his intention to charge forsuch class of WORK, supported by analysis ofthe rate or rates claimed, and theENGINEER-IN-CHARGE shall determine therate or rates on the basis of the prevailing marketrates, labour cost at schedule of labour ratesplus 10% to cover contractor's supervision,overheads and profit and pay theCONTRACTOR accordingly. The opinion of theENGINEER- IN-CHARGE as to current marketrates of materials and the quantum of labourinvolved per unit of measurement will be finaland binding on the CONTRACTOR.d) Where the item of work will be executed throughnominated specialist agency as approved by theENGINEER-IN-CHARGE, then the actualamount paid to such nominated agencysupported by documentary evidence and ascertified by ENGINEER-IN-CHARGE shall beconsidered plus 10% (ten percent) to cover allcontingencies, overhead, profits to arrive at therates.e) Provisions contained in the Sub-clause (a) & (d)