| 2.2 Significant Accounting Policies:(a)    Current and Non-Current ClassificationThe Company presents assets and liabilities in the Balance Sheet based on Current/ Non-Currentclassification.
 An asset is treated as Current when it is - -    Expected to be realised or intended to be sold or consumed in normal operating cycle; -    Held primarily for the purpose of trading; -    Expected to be realised within twelve months after the reporting period, or -    Cash or cash equivalent unless restricted from being exchanged or used to settle a liability for atleast twelve months after the reporting period.
 All other assets are classified as non-current A liability is current when: -    It is expected to be settled in normal operating cycle; -    It is held primarily for the purpose of trading; -    It is due to be settled within twelve months after the reporting period, or -    There is no unconditional right to defer the settlement of the liability for at least twelve monthsafter the reporting period.
 The Company classifies all other liabilities as non-current. Deferred tax assets and liabilities are classified as non-current assets and liabilities. (b)    Property, Plant and Equipment:Property, Plant and Equipment are stated at cost, net of recoverable taxes, trade discount andrebates less accumulated depreciation and impairment losses, if any. Such cost includes purchase
 price, borrowing cost and any cost directly attributable to bringing the assets to its working
 condition for its intended use, net charges on foreign exchange contracts and adjustments arising
 from exchange rate variations attributable to the assets. In case of land the Company has availed
 fair value as deemed cost on the date of transition to Ind AS.
 Subsequent costs are included in the asset's carrying amount or recognised as a separate asset,as appropriate, only when it is probable that future economic benefits associated with the item
 will flow to the enfity and the cost can be measured reliably.
 Property, Plant and Equipment which are significant to the total cost of that item of Property,Plant and Equipment and having different useful life are accounted separately. Other Indirect
 Expenses incurred relating to project, net of income earned during the project development stage
 prior to its intended use, are considered as pre-operative expenses and disclosed under Capital
 Work-in-Progress. Depreciation on Property, Plant and Equipment is provided using written down
 value method on depreciable amount except in case of certain assets of Oil to Chemicals and
 Other segment which are depreciated using straight line method.
 Depreciation is provided based on useful life of the assets as prescribed in Schedule II to theCompanies Act, 2013.
 The residual values, useful lives and methods of depreciation of Property, Plant and Equipmentare reviewed at each financial year end and adjusted prospectively, if appropriate.
 Gains or losses arising from derecognition of a Property, Plant and Equipment are measured asthe difference between the net disposal proceeds and the carrying amount of the asset and are
 recognised in the Statement of Profit and Loss when the asset is derecognised.
 (c)    LeasesThe Company, as a lessee, recognises a right-of-use asset and a lease liability for its leasingarrangements, if the contract conveys the right to control the use of an identified asset.
 The contract conveys the right to control the use of an identified asset, if it involves the use of anidentified asset and the Company has substantially all of the economic benefits from use of the
 asset and has right to direct the use of the identified asset. The cost of the right-of use asset shall
 comprise of the amount of the initial measurement of the lease liability adjusted for any lease
 payments made at or before the commencement date plus any initial direct costs incurred. The
 right-of-use assets is subsequently measured at cost less any accumulated depreciation/
 amortisation, accumulated impairment losses, if any and adjusted for any remeasurement of the
 lease liability. The right of- use assets is depreciated/ amortised using the straight-line method
 from the commencement date over the shorter of lease term or useful life of right-of-use asset.
 (d)    Cash and Cash EquivalentsCash and cash equivalents comprise of cash on hand, cash at banks, short-term deposits andshort-term highly liquid investments that are readily convertible to known amounts of cash and
 which are subject to an insignificant risk of changes in value.
 (e)    InventoriesItems of inventories are measured at lower of cost and net realisable value after providing forobsolescence, if any, except in case of by-products which are valued at net realizable value. Cost
 of inventories comprises of cost of purchase, cost of conversion and other costs including
 manufacturing overheads net of recoverable taxes incurred in bringing them to their respective
 present location and condition.
 Cost of finished goods, work-in-progress, raw materials, chemicals, stores and spares, packingmaterials, trading and other products are determined on weighted average basis.
 (f) Impairment of Non-Financial Assets - Property, Plant and Equipment and Intangible AssetsThe Company assesses at each reporting date as to whether there is any indication that anyProperty, Plant and Equipment and Intangible Assets may be impaired. If any such indication
 exists, the recoverable amount of an asset is estimated to determine the extent of impairment, if
 any.
 An impairment loss is recognised in the Statement of Profit and Loss to the extent, asset's carryingamount exceeds its recoverable amount. The recoverable amount is higher of an asset's fair value
 less cost of disposal and value in use. Value in use is based on the estimated future cash flows,
 discounted to their present value using pre-tax discount rate that reflects current market
 assessments of the time value of money and risk specific to the assets. The impairment loss
 recognised in prior accounting period is reversed if there has been a change in the estimate of
 recoverable amount.
  
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