Galrani was born as the youngest daughter of Manohar Galrani and Reshma at Bangalore.

She has an elder sister, Sanjjanaa who is also an actress. Galrani did her PUC from Bishop Cotton Girls College and later took up a course in fashion designing.

Her first major commercial successful films are in Malayalam language 1983 (2014), Vellimoonga (2014) and in the Tamil language horror film Darling in 2015.

She popularly came to be known as Darling Devil in the media.

She has established a career in south indian film Industries as a contemporary leading actress, and she is a recipient of several awards.

Kochi Times placed her fifth in their list of the "25 Most Desirable Women of 2015".

In 2016, McAfee Intel Security described Galrani as the most searched celebrity in Tamil cinema.

She has also recorded that very few actors to complete 25 films within the just three years of her career as leading roles in all four regional south Indian languages.

IBTimes called Galrani the most successful actress in Malayalam cinema.