The navel (clinically known as the umbilicus, colloquially known as the belly button) is a scar on the abdomen at the attachment site of the umbilical cord. All placental mammals have a navel, and it is quite conspicuous in humans. Other animals' navels tend to be smoother and flatter, often nothing more than a thin line, and are often obscured by fur as well.

The umbilicus is a prominent mark on the abdomen, with its position being relatively consistent amongst humans. The skin around the waist at the level of the umbilicus is supplied by the tenth thoracic spinal nerve (T10 dermatome). The umbilicus itself typically lies at a vertical level corresponding to the junction between the L3 and L4 vertebrae, with a normal variation among people between the L3 and L5 vertebrae. The umbilicus forms a visible depression on the skin of the abdomen, and the underlying abdominal muscle layers also present a concavity; thinness at this point contributes to a relative structural weakness, making it susceptible to hernia.^{[citation needed]} During pregnancy, the uterus presses the navel of the pregnant woman outward, however it usually retracts after birth.

Sakshi Tanwar (born 12 January 1973) is an Indian television and Bollywood actress. She is best known for playing the role of Parvati in the television soap opera, Kahaani Ghar Ghar Kii (Translated literally as "The Story of Every Home"). Sakshi is one of the leading ladies of Indian Television. Sakshi's consequent continued patronage of the largely female audience of the show had been instrumental in changing the fortunes of the production house Balaji Telefilms and in creating a successful genre of tearjerker family dramas, which still continues in the Indian TV industry. The serial enjoyed tremendous popularity in India and abroad.

Sakshi Tanwar was born in a middle class family from Alwar, Rajasthan. Her father Rajendra Singh Tanwar is a retired CBI officer. She belongs to Rajput caste.She was educated in many Kendriya Vidyalayas (Central School) and graduated from Lady Shri Ram college in New Delhi. After her graduations she was preparing for the entrance tests to the administrative services and mass communications, when a close friend of her suggested that she should go and audition for the national broadcaster Doordarshan's film songs based program Albela Sur Mela. To her surprise she was selected and from there begun her journey towards television. On the other hand her academic career graph came to a standstill as she failed to clear both the tests. But she did not stop there. Acting was not a new experience for her. During her college days she was the secretary and president of the dramatic society and had her fair share of stage. Facing the camera however was altogether a different experience for her. But she was encouraged to pursue her acting career after her experience in anchoring. Initially the acting bug smote her mainly for the money and popularity. She picks serials that does not require much commitment but gradually excelled her acting skills and became a fine actress. Presently she lives in Malad West area, in Mumbai.

Vidya Balan (pronounced [ʋɪd̪jaː baːlən]; born 1 January 1978) is an Indian actress, who appears mainly in Hindi films, in addition to Bengali and Malayalam films. After graduating with a degree in sociology, she started her career starring in music videos, television shows and commercials, before making her feature film debut with the independent Bengali drama Bhalo Theko (2003). Balan received positive notice for her first Hindi film, Parineeta (2005), and followed it with a leading role in the blockbuster Lage Raho Munna Bhai (2006), and other such hit films as Guru, Heyy Babyy and Bhool Bhulaiyaa (all 2007).

2009 marked the beginning of the most successful period in Balan's career as she portrayed five back-to-back roles to wide critical acclaim in Paa (2009), Ishqiya (2010), No One Killed Jessica (2011), The Dirty Picture (2011) and Kahaani (2012). These roles have further established her as one of the leading contemporary actresses of Hindi cinema and earned her several major awards. Balan has received one National Film Award for Best Actress, five Filmfare Awards, including two for Best Actress and one for Best Actress - Critics, as well as three consecutive Screen Awards for Best Actress.