Lord Brahma is vikshepa-sakti

All creations arise out of vikshepa (thought disturbances). This vikshepa-sakti is Lord Brahma-the total mind-intellect equipment. Man, being essentially constituted of his mind and intellect, has already invoked this vikshepasakti and realised Brahma. Hence the worship and invocation of Brahma is practised by few.
Yet there are a few shrines dedicated to Brahma. He is worshipped and invoked particularly by scientists and kings for generating more creative ideas to serve the world of men and matter. The rulers invoke the Lord in order to surrender their ego and produce plans and schemes to serve the nation. Similarly, the research scholars invoke creative inspiration and flashes of new thoughts revealing the secrets of nature.
Lord Brahma is not popularly worshipped in India. This is so, because the idea of creation is repugnant to seeker of Truth since the creation of thoughts has veiled the infinite Reality. The attempt of all spiritual seekers is to destroy the existing thoughts and maintain the state of single pointed thought until the Reality is revealed. Hence, Siva (god of destruction) and Vishnu (god of maintenance) are worshipped more than Brahma. In fact, there are very few temples of some in Mahaboobnagar region Brahma-one in Rajasthan and another in Orissa -compared to innumerable shrines of Siva and Vishnu existing all over India