Even lions, tigers and leopards in Mumbai's national park are being fed chicken and mutton rather than their usual beef because the city's main abbatoir has been shut for the past two weeks, said S.D. Saste, the park's assistant conservator.
Maharashtra, India's second most populous state, extended a ban on the slaughter of cows to bulls and bullocks this month and other BJP-led states such as Jharkhand and Haryana have also tightened restrictions on trading beef.
Critics say tougher anti-beef laws discriminate against Muslims, Christians and lower-caste Hindus who rely on the cheap meat for protein, and fear they could pave the way to a nationwide ban that would threaten thousands of jobs.
Tarode had hoped to pocket 12,000 Indian rupees ($190) from selling his bull - more than half the money he makes each month from farming and other paid labor.
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Drought in central India has hit farmers, and many want to sell livestock due to a lack of fodder and water.
But prices of buffaloes and cattle have fallen by 20-30 percent in Maharashtra due to the ban and could drop further if more states follow its lead.
Several thousand people, mainly from the Muslim community, will be rendered jobless in the beef trade and related industries like leather goods, leaders of the business community say.
"My business is ruined. Farmers are offering cattle at much lower prices but I can't buy because slaughtering is illegal now," said Asif Qureshi, a cattle supplier based in Baramati, Maharashtra.
The supply of hides to tanneries across India would also be hit, pushing up prices. Tanneries buy and process animal hides and sell leather to makers of shoes, handbags and accessories.
"Around 10 percent of my hide supplies coming from Maharashtra would be hit. Prices of hides may rise in the short term," said Ashish Das, director, Hides International, a tanner and maker of bags in Kanpur, Uttar Pradesh.
Slaughterhouses in Maharashtra are now refusing to slaughter buffalo in protest at the ban, cutting off all beef supplies in a bid to put pressure on the government. Hindus do not consider buffalo to be sacred.
Not all BJP-led states are pushing for tighter restrictions on beef. The chief minister of Goa, another BJP-led state, has refused to back the ban, saying that two-fifths of people there eat beef and he respected the rights of minorities.
Meanwhile, Hindu nationalist groups affiliated to Modi's BJP want to set up more cattle camps and cow shelters to house animals no longer wanted by farmers.
India has some 300 million cattle, and animals foraging for food are a familiar sight on the rubbish-strewn streets of towns and villages. Their numbers could swell by 200,000 in Maharashtra alone as farmers abandon animals they can't sell, according to the beef trade.