Explanation:

- Rajendra Singh is a renowned environmentalist from India, often called the "Waterman of India."

- He was awarded the Stockholm Water Prize in 2015 for his efforts in water conservation and management, particularly in Rajasthan.

- Vandana Shiva is an Indian environmental activist and author known for her work in promoting biodiversity and sustainable agriculture.

- She has not received the Stockholm Water Prize.

- Anadish Pal is known for his inventions and advocacy for alternative energy solutions.

- He has not been awarded the Stockholm Water Prize.

- Tulsi Gowda is an Indian environmentalist and known as the "Encyclopedia of Forest" due to her extensive knowledge of plants and herbs.

- She has not won the Stockholm Water Prize.