India's fertiliser subsidy could cross a record Rs 3 lakh crore this fiscal if the West Asia crisis persists, overshooting the budgetary allocation of Rs 1.71 lakh crore by about 75%, a government official said. The amount could go up even further if international prices increase in the later part of the year, the official said on the condition of anonymity. Experts called for decontrol or quantitative restrictions. The ongoing West Asia crisis has pushed up the international prices of key soil nutrients such as urea and di-ammonium phosphate (DAP) along with critical raw materials like ammonia, sulphur, phosphoric acid and natural gas. The sharp fall of the rupee against the dollar has also added to the burden, experts said.