Thiru Vi Ka Salai, or theThiru Vi Ka High Road, is one of the main streets in the downtown region ofChennai,Tamil Nadu,India. Running from north to south, the street branches off of the arterialAnna Salai north of theLIC Building^[1] and ends at Luz Corner inMylapore, continuing as theRamakrishna Mutt Road. The street connects the neighbourhoods ofRoyapettah, Mylapore andGopalapuram.^[2] The street includes three individual stretches formerly known as General Patters Road, Westcott Road and Royapettah High Road, respectively. The longest stretch, formerly known as the Royapettah High Road, runs to a length of 1.17 km (0.73 mi).^[3] The presence of numerous automobile dealers on the northern end of the street resulted in Chennai coming to be known asThe Detroit of India.^[1]

The original Woodlands Hotel was located on Royapettah High Road, whose garden space is presently occupied by a namesake cinema complex.^{[4]: 84–85} The street is also known for the presence of princely properties of the Arcot Nawab family, including theAmir Mahal and Acharya Graha. It is said that Amir Mahal and Acharya Graha were connected with a tunnel.^[4]: 196 The Acharya Graha housed the Regional Provident Fund office before the office was moved to its present premises on the same street.^[4]: 196 Previous owners of the Acharya Graha include Justice S. Subramania Aiyer, the Zamindar of Arni, and Congress associate T. M. Srinivasan.^[4]: 196 When it was owned by T. M. Srinivasan, the property had several Congress visitors includingMahatma Gandhi andBalgangadhar Tilak.^[4]: 196 Jammi Buildings, from which Jammi Pharmaceuticals, an outgrowth of the clinic and pharmacy established in Mylapore by Ayurvedic physician Jammi Venkataramanayya in 1928 known for its then popular household name 'Jammi Liver Cure', operated from 1949 till the 1980s, is one of the oldest landmarks on the street.^{[4]: 238–239}

On the southern side of the street, the Sanskrit Academy was established in 1927 to promote Sanskrit learning. Several Sanskritic organisations, including theMadras Sanskrit College, were founded in the first quarter of the 20th century.^{[4]: 237–238} In the 1950s, the Kuppuswami Sastri Research Institute was established, which now has about 50,000 books inSanskrit and onIndology, besides 1000olas (palm-leaf manuscripts) inGrantham,Tamil and Sanskrit.^[4]: 238 TheMadras Law Journal, the oldest inSouth India, was established in the campus in 1891 and moved out in 2006–2007 when it was acquired by an international publisher.^[4]: 238 When the area west of the Madras Sanskrit College towards the southern part of the street, known as theDhobi Ghat, was gifted in 1915, it became the permanent location of the Student's Home, a home for destitute boys founded in 1905 in a temporary location by C. Ramaswamy Aiyangar and C. Ramanujachari. In the 1920s, the home expanded to include a high school and a college.^[4]: 237

By the middle of the 20th century, Anna Salai had become the hub of automobile manufacturers inSouth India, including conglomerates such asSimson,Addison Motor Company,Royal Enfield, South India Automotive Company, George Oaks of theAmalgamations Group,Standard Motor Products of India, andTVS Motor Company.^[1] This, coupled with low rental rates in the nearby streets, resulted in automobile spare manufacturers and dealers opening shops in the region, includingPudupet,Chintadripet, General Patters Road, Whites Road, State Bank Street and so forth.^[1] General Patters Road became the hub of automobile service and spare dealers.^[1] This resulted in the region coming to be calledThe Detroit of India.^[1] The stretch was also home to theaters such as Jayapradha and Melody.^[1]

On 19 October 1952, at the house of Telugu leaderBulusu Sambamurti, in a street off Royapettah High Road leading to the present-day Vidya Mandir School,GandhianPotti Sriramulu embarked on a fast-unto-death, demanding the creation of a new Andhra state for the Telugu-speaking people, leading to the formation of the state ofAndhra Pradesh the following year.^[5] The old tile-roofed house was later demolished to make way for a memorial for Potti Sriramulu.^[5]

Thiru Vi Ka Salai is connected withAnna Salai at the northern end.^[1] The northernmost stretch branching off Anna Salai on its eastern side and abutting the Express Estate was formerly known as General Patters Road,^{[4]: 84–85} running to a length of 0.97 km.^[6] From then on, the street was known as the Royapettah High Road.^{[4]: 84–85} The initial stretch of the Royapettah High Road was in turn known as the Westcott Road for the first 530 meters and the remaining 2 km as the Royapettah High Road.^[7] The street also has a flyover that connects the neighbourhoods of Royapettah and Mylapore.^[8] The southern end of the street is connected to the Kutchery Road at the Luz Corner Junction.^[9] Railway stations that are connected to the main street are theThirumayilai railway station and theMundagakanniamman Koil railway station of theChennai MRTS, both near the southern end of the street. The Royapettah underground station of theChennai Metro is under construction near theGovernment Royapettah Hospital at the northern side of the street.^[10]

The five-road junction near the northern end of the Royapettah flyover, connecting Avvai Shanmugam Salai and Masilamani Street with the Royapettah High Road stretch of the Thiru Vi Ka Salai is a critical traffic junction on the street.^[11][12] The junction is one of the busiest in South Chennai owing to various factors such as being a bus route and the presence of several commercial establishments, headquarters of political parties, auto-gas filling stations, and a residential area.^[13] It is also one of the junctions with five arms, one of which leads to a residential colony.^[13]

The city's largest peripheral hospital, the 712-bedGovernment Royapettah Hospital, is located on the northern part of the street.^[14] Other important landmarks on the street include Sathyamurthi Bhavan (the headquarters of theTamil Nadu Congress Committee), the historic Royapettah Police Station,Provident Fund office,Madras Sanskrit College,Valluvar Statue, and theLuz Anjaneya Temple.^[1][15][16]

The house where Potti Sriramulu fasted to death now stands as the Potti Sreeramulu Memorial Building, which promotes arts and culture and also houses a Telugu library.^[5][17][18]

Royapettah High Road is one of the major roads that are being developed under the phase I of the Mega Streets Project.^[19][20][21] In 2016, theGreater Chennai Corporation sent a proposal to theTamil Nadu government on widening the road and began the work on preparation of land plan schedule.^[22]

• Transport in Chennai

• Roads in Chennai
• Roads in Tamil Nadu

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