Business briefs

To further strengthen its position across key markets including Maharashtra, Gujarat, Punjab and West Bengal, Kalyan Jewellers appoints four regional brand ambassadors. The jewellery brand has taken on board regional celebrities Pooja Sawant (Maharashtra), Kinjal Rajpriya (Gujarat), Wamiqa Gabbi (Punjab) and Ritabhari Chakraborty (West Bengal).

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Nielsen expands advertisement measurement on YouTube's mobile app * Market research firm Nielsen Monday said it has expanded advertising measurement on YouTube's mobile app to 26 additional countries, including India.

The service builds on Nielsen's current measurement coverage of YouTube ads on desktop and mobile web browsers to provide marketers independent and comprehensive cross-device measurement of advertising audiences on YouTube across computer and mobile devices.