Indians walk across contaminated water flowing out of an industrial unit in Jammu, India, Sunday, April 22, 2018. April 22 is observed as Earth Day every year as a tool to raise ecological awareness. (Photo by Channi Anand/AP Photo)





A mother monkey with its baby swim in the Yamuna river during a hot summer day in Mathura on April 29, 2018. (Photo by Dominique Faget/AFP Photo)





A man transports passengers on an improvised motor-rickshaw as they drive past a burning garbage dump site on the occasion of Earth Day, in Kolkata, India, April 22, 2018. (Photo by Rupak De Chowdhuri/Reuters)





This photo taken on April 18, 2018 shows a Kashmiri Muslim Bakarwal nomad posing for a photograph with livestock at a temporary camp near Udhampur, some 72 km north of Jammu in northern India. The Muslim nomads who lead their goats, cows and horses up and down the Kashmir hills have never felt at ease in modern India and the gruesome rape and murder of a girl from the impoverished community has heightened their fears. (Photo by Sajjad Hussain/AFP Photo)





Indian visitors look at books displayed at one of India' s oldest “Connemara” library during an open for the public on the occasion of world book day in Chennai on April 23, 2018. World Book Day is a observed on April 23 rd and is organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to promote reading. (Photo by Arun Sankar/AFP Photo)





An infant sleeps in a hammock at a makeshift shelter in Kolkata, India, April 23, 2018. (Photo by Rupak De Chowdhuri/Reuters)





Indian labourers try to carry a loaded basket at a vegetable market during hot afternoon in Kolkata, India, 27 April 2018. The summer, or pre-monsoon season, is witnessed from March to July in eastern India with the highest daytime temperatures ranging from 38 to 45 degrees Celsius. (Photo by Piyal Adhikary/EPA/EFE)





A man pedals a tricycle loaded with empty cooking oil containers in Kolkata, India, April 17, 2018. (Photo by Rupak De Chowdhuri/Reuters)





New recruits of Gujarat police take part in their passing out parade in a police stadium in Ahmedabad, India, April 19, 2018. (Photo by Amit Dave/Reuters)





A child uses a hand pump to extract water on the banks of the river Yamuna in New Delhi, India, April 19, 2018. (Photo by Saumya Khandelwal/Reuters)





A girl looks through a window of a a train parked at a railway station in New Delhi, India, April 20, 2018. (Photo by Saumya Khandelwal/Reuters)





A man transports passengers on an improvised motorized rickshaw during heavy rains in Agartala, India, April 20, 2018. (Photo by Jayanta Dey/Reuters)





A man collects recyclable materials as smoke billows from a burning garbage dump site on the occasion of Earth Day, in Kolkata, India, April 22, 2018. (Photo by Rupak De Chowdhuri/Reuters)





Girls offer juice to Swati Maliwal, chairperson of Delhi Commission for Women, to end her fast during her hunger strike protest demanding stricter laws for rape in India, in New Delhi, India, April 22, 2018. (Photo by Adnan Abidi/Reuters)





A boy walks on a pile of garbage covering a drain in New Delhi, India, April 23, 2018. (Photo by Adnan Abidi/Reuters)





Police detain villagers blocking the demolition of illegal houses by local authorities at Khuda Ali Sher village in Chandigarh, India, April 27, 2018. (Photo by Ajay Verma/Reuters)





People gather next to a damaged school van after it collided with a train in Kushinagar in the northern state of Uttar Pradesh, India, April 26, 2018. (Photo by Reuters/Stringer)





People use their mobile phones to take pictures of decorated elephants as they attend Thrissur Pooram festival which features a colourful procession of decorated elephants and drum concerts at a Hindu temple in Thrissur, India, April 25, 2018. (Photo by Sivaram V/Reuters)





A man empties a container of fish onto a sack at a fishing village in Mumbai, India, April 30, 2018. (Photo by Francis Mascarenhas/Reuters)





Fish are hung from bamboo poles for drying at a fishing village in Mumbai, India, April 30, 2018. (Photo by Francis Mascarenhas/Reuters)





Devotees light candles at a Buddhist temple on the occasion of Buddha Purnima festival, also known as Vesak Day, in Chandigarh, India, April 30, 2018. (Photo by Ajay Verma/Reuters)





Devotees pray after offering food to the Buddhist monks during celebrations of Buddha Purnima festival, also known as Vesak Day at a temple on the outskirts of Agartala, India April 29, 2018. (Photo by Jayanta Dey/Reuters)





Indian policemen keep vigil outside an ashram of controversial spiritual guru Asaram Bapu in Ahmadabad, India, Wednesday, April 25, 2018. An Indian court has held the high-profile guru guilty of raping a teenage female devotee in 2013. The verdict against Bapu, 77, was read out inside a prison in the city of Jodhpur in Rajasthan on Wednesday because of fears that his followers may resort to violence. (Photo by Ajit Solanki/AP Photo)





Indian children of boatmen search under a railway bridge for coins offered by Hindu devotees in passing trains on the Yamuna river in Allahabad on April 30, 2018. (Photo by Sanjay Kanojia/AFP Photo)





A girl carries her brother as she stands near her burnt home after a fire broke out in a slum area in New Delhi, India, April 24, 2018. (Photo by Adnan Abidi/Reuters)





Indian devotees dressed as the Hindu deities Lord Radha & Krishna pose during Shyam Baba festival in Ajmer in the Indian state of Rajasthan on April 26, 2018. (Photo by Himanshu Sharma/AFP Photo)