If you say a standard lotto drawing, that refers to regular sessions of government lottery in India. Most states organize daily draws, but some even have multiple sessions per day. It only depends on the government organizing the lottery.
As for bumper draws, these are special sessions that occur several times per year. The dates are usually related to state or other holidays, and the bumper lotto draw serves to celebrate them. Commonly, the prize fund for bumper draws is higher than for standard sessions. As for ticket prices, they could also be higher due to the increased reward pool.