Mr Ramesh is correct to point out that angling inside a protected area is against the law of the land as recently tested in the Centre. Perhaps there does need to be consideration of the relevant laws, as they very often achieve the opposite effect from that intented, by allowing poachers to operate in core areas with very little fear of being caught.

He is, however, wrong to assert that "conservation through angling is a fallacy", as has been shown over at least half a century in the UK, where without robust efforts by angling bodies, many of the people who are charged with protecting rivers and other waterbodies would have laid them waste.
The simple fact is that anglers on the river bank act as eyes and ears to report both poaching and pollution, which are also illegal under the laws of India.
As I have reported on this forum before, the main area of Kaveri Sanctuary where the angling ban was enforced is once again under pressure from dynamite fishing. This is only because anglers are not now allowed there.
Yes, the Forest Guards should be doing their job to uphold the law, but fish are once again dying at the hands of explosions which do indiscriminate damage to all the flora and fauna of the river.