Nambiar hails from Kasaragod, Kerala. In 2014, she was pursuing a BA in English Literature privately. She is a trained classical dancer and a singer. At age 15, she made her acting debut in the Malayalam film Kaaryasthan, playing Dileep’s sister,with Mahima calling it a “blink and miss role”.
She was working as an advertisement model, when director Samy tried to cast her for Sindhu Samaveli (2010) but she had to decline the offer for personal reasons. The production team later recommended her for Saattai (2012), which marked her Tamil film debut. She was in class 12 when she acted in the film, in which she played the lead role of Arivazhagi, a village school girl. After Saattai, she took a year’s sabbatical to complete her school, and returned to acting with roles in four Tamil films.