Assam-based Numaligarh Refineries, a subsidiary of Bharat Petroleum Corporation, will shortly begin work on laying a product pipeline from Siliguri in West Bengal to Parbatipur in Bangladesh. The pipeline would allow BPCL to penetrate the Bangladeshi market and ensure sustained supply of petroleum products to Bangladesh. The length of the pipeline would be approximately 170 km and NRL would export high speed diesel, and motor spirit to Bangladesh. NRL will also begin exporting petroleum products to Nepal, Bangladesh and Myanmar next year. The companyÂ´s proximity to these three countries offers a natural market for its products. NRL is expanding from its current level of three million tonne per annum to nine mtpa. BPCL will spend about Rs 13,000 crore on expanding the refinery by 2017-18.