Indian police say they have arrested a 28-year-old man wanted in connection with two sex attacks in Britain.

Former nightclub bouncer Raminder Singh was arrested in New Delhi on Sunday after three years on the run, police joint commissioner Ravindra Yadav said in a statement late Monday.

Suspected rebels shot and killed three unarmed police officers Monday after ambushing their vehicle in disputed Indian Kashmir, shortly after a separate incident left another officer critically injured, officials said.

The police officers were travelling to Amshipora village, 60 kilometres (37 miles) south of the main city of Srinagar, to probe a local land dispute when the ambush occurred.

Struggling state-run carrier Air India has grounded two of its pilots after a fight erupted between the pair just before takeoff, reports said Monday.

The co-pilot allegedly assaulted the captain inside the cockpit as they were preparing the passenger plane for takeoff from the Indian tourist city of Jaipur to New Delhi on Sunday night, the Hindustan Times newspaper said.

India's government launched a new air quality index on Monday, under intense pressure to act after the World Health Organization declared New Delhi the world's most polluted capital.

Environment Minister Prakash Javadekar said the government would publish air quality data for 10 cities, amid growing public concern over the impact of air pollution on the health of India's 1.2 billion people.

Seven decades after fleeing the carnage of partition, Mangu Ram is still regarded as a second class citizen in Indian Kashmir, unable to own property or vote in state elections.

But, now aged 82, Ram is daring to hope he will finally be able to shed his refugee status after Prime Minister Narendra Modi's Hindu nationalist party won a share of power in India's only Muslim-majority state.

Pakistani Kashmir is set to expel some 11,000 illegal Afghan refugees under a national anti-terror plan announced in the wake of the country's worst ever militant attack, police said Thursday.

There are an estimated three million Afghan refugees living in Pakistan, either officially or unofficially, most of whom left their country to escape conflict in the 1980s and 1990s.

Prime Minister Narendra Modi on Thursday urged India's banks to lend more to the country's millions of impoverished farmers in a bid to halt suicides by debt-laden agricultural workers.

Speaking at an event on increasing financial inclusion, Modi said he was pained to hear of increased reports of farmers taking their own lives after being unable to repay unscrupulous money lenders.

UAE carriers Emirates Airlines and Etihad Airways said Wednesday an investigation is underway after two of their planes apparently flew too close to each other, but that safety was never jeopardized.

The incident took place Sunday in Indian airspace between Emirates flight EK706, traveling from Seychelles to Dubai, and Etihad's EY622 heading to Seychelles.

Indian police said Wednesday they have arrested four Bangladeshi nationals in connection with the rape of an elderly nun that sent shockwaves through the Christian community.

The nun, who is in her 70s, needed surgery after she was attacked last month when a gang of robbers broke into the convent school in the eastern state of West Bengal where she lived.

Police in eastern India have arrested around 1,000 aspiring constables for using "middlemen" to sit their exams for them, in the latest cheating scandal to hit Bihar state, an official said Monday.

Some 50,000 candidates sat the written exams last October for a highly-sought after place in the police force in underdeveloped Bihar, senior superintendent Jitender Rana said by phone from state capital Patna.