KOLKATA: Mobile phone sales have come back to normal growth in January after a sudden slump due to demonetisation , on the back of quick responses from retailers and marketers, a top official at the country’s largest mobile phone maker Samsung has said.Retailers quickly adopted digital payments and companies rolled out easy finance options and other consumer offers to help the industry quickly overcome a slowdown, immediately after the demonetisation move in early November, said Manu Sharma, vice-president (mobile business) at Samsung India.Entry-level feature phone sales were badly hit by the sudden decision to delegalise old Rs 500 and Rs 1,000 banknotes that accounted for 86% of currency in circulation. Sharma claimed that Samsung has met its October-December quarter sales target despite demonetisation and the company’s decision to not launch flagship Galaxy Note 7 smartphone due to safety concerns.“While December was almost normal, Samsung is back to double digit growth in mobile phone business from January,” he said. He said Samsung had one of its best years and improved its smartphone market share in the country to 46.9% from 41% in 2016. The firm’s overall mobile phone business grew in double digits, Sharma said.As per industry estimates, cellphone sales declined by 40-50% in November after demonetisation and was down by 15-20% in December. The worst impacted were feature and entry-level smartphones that are mostly purchased by cash. Indian brands having significant presence in small towns and rural areas bore the brunt of the impact.