Mahakali is considered to be the prime Goddess for sadhana. This form of the Devi is dark-skinned with disheveled hair with a garland of severed human heads. She holds a severed human head and a kharga (a large machete) in her left hands and a barmudra and in her right hand.

She is having a half-moon on her forehead. Mahakali's major forms are Dakshinakali, Gujyakali, Bhadrakali, Sashankali and Mahakalbhairavi. Dakshinakali is adhisthatri devi who governs the planet Shani. So she is worshipped on Saturday. The temple to Mahakali is situated in east of Kamakhya.

Tara Devi gives ‘Bak-shakti’ i.e power of speech. She is also 'Nil Saraswati'. Devi is fair-skinned, three eyes and four hands. She holds a Kharga, a Kartarika, a severed human head and a water lily. She wears a garland of human heads and wears a Tiger Skin. Tara Devi is shown standing on a pyre. According to Maya Tantra, Tara Devi has eight forms: Tara, Urga, Mohagra, Bajra, Nila, Saraswati, Kameshwari and Bhadrakali. When prayed she comes to the aid of people in trouble and so known as 'Tara'.

As Nil Saraswati, She grants power of speech. As Ugratara, She protects people from deep fear. Sage Basistha placed Tara Devi near Jorpukhuri of present Guwahati-the famous mandir is known a ‘Ugratara Mandir’. The Tara mandir in Nilachal Parvat lies between Mahakali and Kamakhya temple. Tara is the adhisthatri devi of Guru Brihaspati (Thursday) and is considered Devi who guides and protects and offers the ultimate knowledge that leads to salvation.

Mahakali is considered to be the prime Goddess for sadhana. This form of the Devi is dark-skinned with disheveled hair with a garland of severed human heads. She holds a severed human head and a kharga (a large machete) in her left hands and a barmudra and in her right hand.

She is having a half-moon on her forehead. Mahakali's major forms are Dakshinakali, Gujyakali, Bhadrakali, Sashankali and Mahakalbhairavi. Dakshinakali is adhisthatri devi who governs the planet Shani. So she is worshipped on Saturday. The temple to Mahakali is situated in east of Kamakhya.