A heartbroken wife jumped to her death after her husband died of a heart attack at a zoo in India.

Newlywed wife Anjali, 22, was exploring the Delhi Zoo with her husband Abhishek Ahluwalia, 25, when the man began suffering chest pains and collapsed February 26.

He was rushed to the Guru Teg Bahadur Hospital, and later transferred to the Safdarjung Hospital for more intensive care.

However, despite doctors' efforts, his condition deteriorated rapidly, and he was pronounced dead of cardiac arrest on Monday.

His relative Sanjiv said: 'The medics told Abhishek's friends to take him to Safdarjung. I reached there too. I spoke to the doctor. He told me they tried their best, but could not save him.'

Abhishek's body was taken back to the couple's home at the Ahlcon Apartments in Ghaziabad, Uttar Pradesh, with a disconsolate Anjali staying next to her husband's coffin during the wake.

Overwhelmed with grief, the devastated young woman shocked her family when she reportedly flung herself off the seventh story balcony.

Speaking to local media, Babita, a relative of Abhishek, said: 'She suddenly got up and ran towards the balcony. I figured that she was going to jump. I ran after her, but before I could stop her, she jumped.'

Anjali suffered severe injuries and was rushed to the Max Hospital in Vaishali. She died within 24 hours of Abhishek's passing.

Relatives said the couple had tied the knot last November 30.

Local media reported that Abhishek worked as a property dealer, while Anjali was a native of northeast Delhi's Karawal Nagar town.