<h1>Delhi High Court allows deduction of prior period expenses if liability crystallized in relevant year; differs from Supreme Court ruling.</h1> A recent decision by the Delhi High Court in the case between the Commissioner of Income-Tax and a lubricant company addressed whether prior period expenditures can be deducted in the current year. The court affirmed that such deductions are permissible if the liability was determined and crystallized in the relevant year. This decision relied on precedents from cases in the Supreme Court and various High Courts, including those involving tea estates and cement industries. However, it distinguished itself from a Supreme Court decision involving a construction equipment company.