Ludhiana

For 50 years, his family's clothing business in India's northwestern textile city of Ludhiana has made jackets, sweaters and sweatshirts.

Others like Jatin Khurana in the northern city of Ludhiana are experimenting with flavours.

He went to school in Ludhiana and then on to Chandigarh University in the early 1990s to study law.

On a recent bright morning, Satwinder Kaur Satti, who heads Abbnhi, a support group for left-behind women, was talking to visitors in her home in Ludhiana when her phone rang.

PTI news agency quotes Ludhiana Deputy Commissioner Surabhi Malik as saying: "We are going to collect samples from manholes. It is quite likely that some chemical reacted with methane in manholes."