Does Kerala Lottery is legal to play in India?

I am from India and there are lots of lotteries and i want to know that " Is it legal to play Kerala Lotteries such as Pournami RN and Akshaya AK are legal to play in India. there is legal website i think named https://keralalotteries.me/ update these lotteries but unfortunately there is not much information . so Please guide me Guys any one know about it