Legal Cross-Border Trade vs. Illegal Cross Border Trade: Combating Informal Cross Border Trade and Converting it into formal Cross Border Trade through Strong and Sustainable Regional Cooperation in South Asia – International Conference on Promoting Intra-Regional Trade in South Asia: Role of SAARC 26th -27th March 2011, MK Nambyar SAARCLAW Centre and NALSAR University of Law, Hyderabad, India, 2011