Manju ji, If you are serious I may be of help; because as part of my job, I teach Nepali too. We have our own in-house resoures but I can post some to you if required. Our books are based on English grammar and we teach upto 'Minimum Working' level in 10 weeks. There are 5 levels: Survival, Minimum Working, Professional Working, Advanced and Native. As you can see, in British Education Frame Work, a foreign language can only be taught upto level 4. Here is one site to try: http://www.thamel.com/webshaala/webshaala.htm