Why not possible to build wall or implement VISA system? Have you ever pay TAX in Nepal? Ask yourself why you did not? Have you ever contribute to anything to Nepal? Why you did not? Did your father, brother, sister and yourself build building at kathmandu? Ask yourself how did your buy land and build building in Kathmandu? You are happy to do bribery, illegal commission, all kind of corruption and crime as well as put country into trouble. When people raise voice for protect country and save true democracy that gives you head ache and pain on your butt. Are you Nepali? Are you born in India? Did you get Nepali citizenship by bribery? Lots of question pop-up? You have heart, mind and soul, everything is possible. You do not need Indian help as like India did help you to do bribery, corruption and crimes in Nepal.