Cardboard boxes and cable pile up in the confined spaces of Rustam Sengupta's office located in the south of New Delhi. They contain solar modules of all types that are "Made in India," he says proudly, while arranging the boxes to be sent to Indian villages.

The solar lamps and panels are believed to make a difference. The 33-year-old businessman says the name of his company is "Boond," which means "drop" in Hindi, and "every drop makes a difference." Boond provides training to so-called micro-entrepreneurs in rural India such as 28-year-old Balchand, who hails from the western state of Rajasthan.

In his district, he is one of the eleven farmers who have completed the training successfully at Boond and learned how to calculate power requirements and fill bank documents. The farmers have also acquired technical know-how. Meanwhile, Balchand has been selling around 20 solar-powered products in his area every month.

He makes sure that they are all technically maintained and helps his customers get loans from local banks. Boond, in turn, has previously engaged with the banks and tried to promote bankers' confidence in the borrowers. Depending on how much Balchand sells, he receives between 50 and 80 euros per month from Boond. There are enough customers in India. After all, more than 400 million people in the country have no access to electricity.

There have been numerous attempts to change the situation on the ground through solar-powered systems, but they have all failed so far, according to Boond-founder Sengupta. "There wasn't enough money to buy the products. There were also difficulties in imparting technical know-how and problems related to equipment maintenance."

Small steps

In rural areas, people were given solar systems, but no one felt responsible for them, he says. But now he wanted to change that with his business model. Boond has tried to contribute to India's sustainable development. But the idea behind this development has played almost no role in the South Asian nation. For instance, although the government established a new ministry for Renewable Energy in 2006, it still is largely unknown.

But India aims to increase its investments in solar energy and expand the generation capacity to around 20 gigawatts by 2022 under its National Solar Mission plan. Individual projects, such as the world's largest solar power plant - recently inaugurated in the western state of Maharastra, are a source of optimism.

A thousand new cars daily

Germany is providing technological support for India's shift towards renewable energy. But the rapid economic growth has been the government's top priority until now. India is already paying the price for it today. Although there are now modern metro train services in several cities, auto rickshaws and buses are run on gas instead of petrol and diesel. It's hard to get people to rethink.

According to the Indian government, a thousand new cars are being added every day to Delhi's already crowded streets. A car is a new status symbol and at the same time it's the number one cause for cities turning stinky, according to the New-Delhi based Center for Science and Environment (CSE).

Recent reports stating the air pollution in the Indian capital is higher than that in the Chinese capital Beijing have become the subject of discussions, but they have failed to trigger a proper political debate.

No demands

Hardly any of the political parties have issues related to environmental protection or renewable energy on their agenda. Not even the new political party, the Aam Admi Party, which recently formed the government in Delhi vowing to fight against the widespread corruption in the country, has environmental protection on its priorities list. "People are not making any environmental demands from the government and the government is not offering anything," environmentalist Vimlendu Jha explains the situation.

For years, the activist has been fighting to improve the Yamuna river's water quality in Delhi. In fact, Yamuna has become a sewer. 18 channels dump raw sewage into the river. Some places along the shore are used as crematoria and others as garbage dumps from which methane bubbles rise high into the atmosphere.

The stench of the river is sometimes barely tolerable, even from hundreds of meters away. "In industrializing countries such as India, more and more people are making the leap into the middle class, which results in an ecological footprint in the form of high costs to the environment, be it forests, rivers or lakes," Jha told DW, adding that the 22 kilometers of the Yamuna river flowing through the capital are responsible for 80 percent of the river's entire pollution.

Environment and ecology are at the bottom of the priority list of the new middle classes, who mostly live in the country's big cities. In the workshops organized in schools by his non-governmental organization, Jha often finds himself having to explain to students that the tap water does not come from tanks on the roofs of houses, but originates from a river, which is severely poisoned, said the activist.

Voice is being heard

In the meantime, Rustam Sengupta stands in front of the glued cardboard cartons delivered to his office. In the coming days, he plans to head back to villages to identify potential new trainees for Boond. Although this is still only a small step, he says, it could make a difference in the long run.

"Ten years ago, no one would have been interested in social enterprises such as Boond, but today our voice is being slowly heard. Politicians, too, now have to answer tough questions and be accountable." This motivates him to keep going.