Original sentence: NH -7 the Longest National Highway of India connecting (Varanasi - Kanyakumari) passes through it.Varanasi - Kanyakumari via Krishnagiri (NH-7)
Edited sentence: Varanasi - Kanyakumari via Krishnagiri (NH-7),the Longest National Highway of India connecting (Varanasi - Kanyakumari) passes through it