Indian food group Britannia Industries has booked higher half-year sales and earnings.

The company posted a 14.1% increase in sales to INR34.52bn (US$559.2m) for the six months to the end of September.

Net profit almost doubled from INR1.82bn a year earlier to INR3.61bn, although Britannia did book a one-off gain of INR1.24bn.

Underlying net profit increased 30.2% to INR2.37bn.

Amnish Aggarwal, an analyst covering Britannia at Indian brokerage Prabhudas Lilladher, said the company's second-quarter results had been above estimates, pointing to its underlying net profit of INR1.3bn.

However, Aggarwal said Britannia's second-quarter sales - which climbed 12.9% - were "uninspiring", with volumes increasing by around 7.5%, a slowdown on the first quarter.

Nevertheless, the analyst said the "margin outlook" for Britannia was "strong" on the back of "improved sales mix, new manufacturing units, cost-cutting in distribution and marketing".