First of all, 2-3 months before the show starts, a question is asked on television and users can have to answer that question in order to come in that show, only a selected contestants are selected and come in the show. The contestants must undergo an initial round of "Fastest Finger First", in which the host introduces the ten contestants of the episode and asks them all the same question. The contestants must then arrange the answers in the order described in the question. The contestant that places the four options in the correct order in the fastest time gets the chance to go on the "hotseat".
All contestants must be over the age of 18 and a citizen of India in order to be eligible. The person must not be a former "Kaun Banega Crorepati" contestant and, as defined in the Income Tax Act, 1961, must also be a resident of India.
At the hotseat, the contestant is asked a series of general knowledge questions consistently rising in difficulty with every question. Each question has four options with only one correct answer. The contestant wins a certain amount of money with each correct answer, and may choose to give up and retain the money they have already won if they decide not to answer the currently shown question. The contestant is asked to pick a "Padao", which means that after a certain question, for example after Question 6, he will at least get that amount of money after answering that question rightly. Until that question, 45 seconds will be given to the contestant to answer, and after that question, there will be no time limit.
The money won after each question is roughly doubled from the previous amount won, exponentially increasing the amount won after each correct answer until the contestant reaches the final question, after which they win the maximum prize (currently 5 crores in KBC 4). The current sequence of prize amounts on KBC are as follows (Western digit grouping in parentheses)
