The Gudur–Chennai section is a railway line connecting Gudur in the Indian state of Andhra Pradesh and Chennai Central of Tamil Nadu. The main line is part of the Howrah–Chennai main line and New Delhi–Chennai main line.^[1][2]

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Gudur–Chennai section
Gudur Junction the starting point of Gudur–Chennai section
Overview
Status	Operational
Owner	Indian Railways
Locale	Andhra Pradesh, Tamil Nadu
Termini	Gudur Chennai Central
Service
Operator(s)	South Coast Railway, Southern Railway
History
Opened	1899
Technical
Track length	455 km (283 mi)
Number of tracks	2
Track gauge	1,676 mm (5 ft 6 in) broad gauge
Electrification	Yes
Operating speed	130 km/h (81 mph)
Route map Legend km km Vijayawada–Gudur section Gudur Junction 000 317 Gudur Junction Kondagunta 010 Vendodu 019 326 Odur Nidigallu 028 Nadikudi–Srikalahasti section 332 Pedapaiya Venkatagiri 036 Yataluru 042 345 Nayadupeta Yellakaru 048 Akkurti 056 NH 5 Sri Kalahasti 060 Rachagunnari 067 361 Doravari Chatram Yerpedu 074 Guntakal–Renigunta section 364 Polireddipalem Renigunta Junction 083 Tiruchanur 087 end of North Line service Chennai Suburban Railway 980 m 1072 yd Tirumala Hill 372 Sullurupeta Tirupati 093 375 Akkampet Tirupati West Halt 095 385 Tada Chandragiri 105 Andhra Pradesh Tamil Nadu border Kotala 107 392 Arambakkam Mungilapattu 115 402 Elavur Panapakkam 121 407 Gummidipudi Pakala Junction 135 413 Kavaraippetta Dharmavaram–Pakala branch line to Dharmavaram Junction Brahma Arani River Putalupattu 146 420 Ponneri RVS Nagar 157 425 Anupambattu Chittoor 165 429 Minjur Siddampalli 173 434 Nandiambakkam Peyanpalli 183 433 Athipattu Ramapuram 192 434 Athipattu Pudhunagar Bommasamudram 198 Larsen & Toubro Shipyard Andhra Pradesh Tamil Nadu border Ennore Port Chennai–Bangalore line North Chennai Thermal Power Station Katpadi Junction 208 Chennai–Bangalore line Indian Oil Corporation to Viluppuram Junction & Puducherry Pud1 097 HPCL Terminal Taduku 099 Vallur TPS Puttur 106 Ennore Creek Vepagunta 111 Ashok Leyland Ekambarakuppam 122 TANGEDCO Ennore TPS Nagari 124 439 Ennore Venkatanarasimharajuvaripeta 128 440 Kathivakkam Andhra Pradesh Tamil Nadu border 443 Wimco Nagar Popai 131 MRF Tyres Tiruttani 139 Royal Enfield Chennai–Bangalore line 446 Tiruvottiyur Arakkonam Junction 153 to Chengalpattu Junction CPC Manali Refinery Chennai–Bangalore line & Chennai Suburban Railway Tamil Nadu Petroproducts Ltd. Integral Coach Factory Madras Fertilizers Perambur Loco Works 448 V. O. C. Nagar Perambur Carriage Works 450 Tondiarpet Perambur Bharat Petroleum Vyasarpadi Jeeva 451 Korukkupet Chennai diamond junction Basin Bridge 453 Chennai Egmore–Thanjavur main line Chennai Central 455 km km Sources: Google Maps India Rail Info/Vijayawada–Chennai Jan Shatabdi Gudur–Tirupati Passenger Arakkonam–Cuddapah Passenger Tirupati–Katpadi Passenger

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Gudur is under the administrative jurisdiction of South Coast Railway, and the rest of the line up to Chennai is under the administrative jurisdiction of Southern Railway.

Due to heavy and incessant rains from 3 to 5 November 1957, water overflowed the track at many places between Tada and Nayudupeta stations on the Madras–Gudur section of the Southern Railway resulting in the interruption of through communication from the afternoon of 4-11-1957 ^[3]

• The damage was caused both to the track and bridges on the Akkampet-Sullurpeta-Nayudupeta section of the Madras–Bezwada line on 4-11-1957 due to heavy rain and estimated cost of damage is about 2.5 lakhs.
• About 410 passengers on No. 16 Up Grant Trunk Express and about 500 passengers on No. 18 Up Janta Express which were scheduled to arrive at Madras on 4-11-1957 were held up at Sullurpeta and Dhoravari Chattram stations respectively.^[4]