The info in English.
Tamilnadu Fisheries Dept ,Nilgiris Dist
Carp fishing license
Rs 10/- only
This license also valid for Ooty lake, Maravakandi dam ( Masinagudi), Sandy Nalla dam, Sandy Nalla stream, Moyar river , Pykara river, Bhavani river which is inside Nilgiris district etc.
If the fishing is banned for some reason then you should not do fishing even if you have a valid licence .( may be you get a license for a month, but the 2 nd week was banned like)
You have to use a single rod, line ,hook only and not multiples allowed.Otherwise you have to get multiple licence.
Evening 7.30 to morning 6.00 am you should not do the fishing .
Fishing is not allowed 30 meter closer to the dam wall.
If the fish is lesser than 35 cm, you have to release it.
If needed Fisheries dept or police dept or revenue dept or forest dept can ask you to show the license.
There was somany other things and hope this is sufficient for you.