the north by karnataka and andhra pradesh in the east by bay of bengal in the south by indian ocean and in the west by kerala state . it has a coastal line of 1076 km and a land boundary of 1200 km . it lies between 8 5 and 13 35 at northern latitude and 76 15 and 80 20 of eastern longitude with an area of 1 30 058 sq. km . 50 154.7 sq.miles . more ... from the m.d s desk the department of horticulture and plantation crops was carved out of the agriculture department and started functioning form the year 1979 . the main objective of this department is to increase the area under horticulture crops thereby increasing the production and productivity of the horticulture crops which brings higher income to the farmers . read more ... garden of excellence the centenary rose park was established during 1995 as a commonerative garden to the centenary celebrations of udhagamandalam flower show at government botanical garden udhagai . the park posesses as many as 3000 varieties of roses collected from different parts read more ... read more ... visitor 302307 agriculture complex i floor chepauk chennai 600 005 . phone 91 44 2851 3232 3234 . fax 91 44 2851 3187 e mail mdtanhoda tn.gov.in design & developed by maruti computers p limited .