I am going to buy a new dell laptop around 30,000. Please suggest me what type of configuration i want for lap?

Are you gonna use it for gaming? A graphic card is required. AMD is generally cheaper than NVidia for the same level of performance, but don't rely on the Intel graphics card. It won't work. Processors in the i-series of Intels (i3, i5, i7) are also generally good, and better than their AMD counter-parts, which don't last very long. BUT, if it's gonna be for basic use, absolutely any laptop will do. ASUS is better though, for reliability, but Dell has better after-sales service.