Saurav, are you asking about racism in the US or within Nepalese? If you are asking about racism in the US. Then yes there is, but not in such ways that it is gonna disturb in terms of leading your happy life. Racism are ignorable in US from what I have experienced. Some examples of racism are: 1). White people act if they are much smarter and are condescending and Blacks act unnecessarily aggresive. 2). Asians try to dominate you if you are not a fluent speaker of American english, and pose as if they are better just coz they have been living here for longer time than you have. 3). Hispanics sound unpolite and mean to us nepalese. If you can deal those three problems, I welcome you abroad.