I am pursuing Ph.D in Environmental Science, in Bharathidasan Univeristy, Tiruchirapalli. Last month, I found monthly and annual data for 28 number of districts in Tamil Nadu for the years (1952 to 2002) in WATERPORTAL link https://www.indiawaterportal.org/met_data/ which was very helpful. So First I would like to thank water portal team. Now I need the information about name of monitoring rain-gauge station name and location co-ordinates to obtain the above datas for the following districts Kancheepuram, Tiruvallur, Cuddalore, Vellore, Villupuram, Tirunvannamalai, Dharmapuri, salem, Namakkal ,Erode, Coimbatore, Theni, Karur , Dindigul, Perambalur, Ariyalur, Thanjavur, Nagapattinam, Tiruvarur, Trichy , Pudukkottai, Madurai, Sivagangai, Ramanathapuram, Virudhunagar, Tirunelveli, Thoothukudi, and The Nilgiris. Regards Jaman