Nagalapuram is a small trekking spot in Tamil Nadu Andhra border, about 70 km from Chennai. But it's tough to reach there from Chennai if you don't have a bike or car. We had to change quite a few buses to reach there, but buses are available from CMBT to Pichatur.
Trekking starts from Arai village to 5 cascades of Siddheswara Swami Konai falls. We trekked up to the second one. Our plan was to camp for the night. Though, we didn't find the place quite suitable for camping.
Me and 3 of my colleagues, started on Sunday morning by 7 am. I started from Guduvanchery. Reached Tambaram by train, had breakfast. Then got on route 566 bus towards Tiravallur by 8:30. Then bus to Uthukottai, and then to Pichatur. There we bought some water and Headed to Arai village in bus. It was total ₹70 per head for total bus journey from Tambaram. Reached Arai village by 4 pm.