Friederike Irina Bruening came to India around 25 years ago and spent around 200,000 euros (AFP)

It's a long way from Berlin to India, where Friederike Irina Bruening devotes her life to sick and abandoned cows. Now, after intervention from the government, she has been allowed to stay.

"Currently we have around 1,800 cows," Bruening told AFP from outside the holy city of Mathura in northern India where she keeps the animals. "Between five and 15 are brought in every day."

Bruening, 61, had threatened last week to return the Padma Shri award that she won for cow protection, after her request for a visa extension was denied.

This prompted Foreign Minister Sushma Swaraj to take to Twitter and announce she had "asked for a report", and on Monday Bruening said she had been issued with a new visa allowing her to remain in India.

Bruening came to India around 25 years ago and says she has since spent around 200,000 euros ($225,000) of her own money over the years on her cow shelter, which costs around $45,000 per month to run.

Many of the cows that arrive are blind or have been injured in road accidents, while others are sick from eating the vast amounts of plastic waste littering India. Around half of the new arrivals die.

Since coming to power in 2014, one of the signature policies of Prime Minister Narendra Modi, newly re-elected, has been the protection of cows, which for many Hindus are sacred.

Laws against the slaughter and consumption of beef have been strengthened, and lynchings of Muslims and Dalits -- who have traditionally been involved in the sector -- have risen.

This has prompted many people to abandon old and infirm cows instead of selling them for slaughter, resulting in more of the animals on the loose, including in cities like Delhi where they are a common sight.

But Bruening, who has become a Hindu and is known as Sudevi Dasi, said that allowing the slaughter of old or sick cows is not the answer.

"Killing a cow is the worst thing you can do," she said.