You can keep the divine trinity of Goddesses – Saraswati, Laxmi, and Durga. But, you should not keep three idols of the same Goddess, as it can bring upheaval and bad luck to your household.
Goddess Saraswati is one of the most beloved goddesses in Hindu traditions. Maa Saraswati, commonly called by the folks, is the goddess of knowledge, music, art and learning.
There is a proper way of placing Saraswati Maa's murti or idol in a home. An idol of Maa Saraswati should be installed in the West southwest as the place symbolizes education.
The Idol must face the East direction and must have sunlight entering that room. Along with the statue of Saraswati, you should also place Saraswati Yantra near the study table or on the side of the bed.
An idol of the goddess Saraswati can be placed on the study table as she is the goddess of education and knowledge, and it will help you focus more towards your studies and be more dedicated.
The Hindus believe that Saraswati Maa endows human beings with the power of speech, wisdom and learning. This is one reason educational centres keep Saraswati Maa's idol in their institutions.
To perform Saraswati Puja, firstly, place the idol of Maa Saraswati on an asana. Place a yellow, orange, or white-coloured cloth beneath the asana. Offer yellow or orange-coloured flowers to Goddess Saraswati. Then light a diya and chant aarti.