The Supreme Court today expressed dissatisfaction over the affidavit filed by the Centre that actual construction work of the 263-km fencing along Indo-Bangladesh border will take three years and go beyond the year 2020. <br/><br/>A bench comprising Justices Ranjan Gogoi and R F Nariman said, the statements made in the affidavit are an exercise in vagueness with no specific details in spite of various orders of this court and passage of time. <br/><br/>The bench was unhappy that in one of the paragraphs in the affidavit, the concerned authority stated that it will take 18 months to complete the work on a stretch of 13.38 km without giving any reason. <br/><br/>The bench directed the competent authority of the Home Ministry to furnish all details and give justification for the stand taken in the affidavit. The apex court was dealing with the issue of border fencing concerning Assam.