This depends on the region or country where you are trying to do your business of real state agent. If the real state industry is a developing country of region where you are going to open your business then you should make high investments and if there is high demand of this business in the market. In this situation you should have at least 5 million rupees to invest in the business to get the profits. This type of business is different from other business ,first you have to invest in this business and then you are able to reap the profits or benefits after some period of time.
This business is based on the long term investment. So if you are going to start your career in this industry you should have much money to invest so that you can have good profits after certain period of time. In such type of business there is a concept that the more you will invest into the business the more you will get out of this business. You should have to invest lot of money for starting your career from the real state industry and So you should take care of other factors as well.
When starting a career as a real estate agent agent you should first start with less money. After some period/months you should spend more if you are getting profit.