At first, I did not want to write this. I was afraid that some Hindu devotees including my own family members will be offended. However, I want my opinion to be heard, in a nice way.
We know that thousands of devotees offer Paal Kudam (Milk Pots) during each Thaipusam festival.
Firstly, keep in mind that I have nothing against paal abishegam (ritual milk bath) in Hindu temples. It is not wrong at all.
But when we do it together in a very large number, it actually matters a lot. There is a big difference between pouring just 10 litres and 100,000 litres.
Perhaps the temple management can be the only ones who offer Paal Kudam. Probably 10 litres for ritual sake.
Devotees should be encouraged to bring Panneer Kudam (Rose Water Pots) instead of Paal Kudam as offerings during each Thaipusam especially in Batu Caves.
The smell of rose water is far better than the smell of stale milk. It is also much more hygienic for the environment.
Imagine walking into Batu Caves with a strong fragrance because of the tonnes of rose water poured.
Think about it :)