India, Nov. 4 -- Ravi Uppal, co-founder of Mahadev online betting app and key accused in multi-crore illegal betting syndicate, has been arrested in Dubai, officials familiar with the development said on Wednesday, terming it another "major breakthrough" in the case within a week.

The arrest comes days after the Central Bureau of Investigation (CBI) and the Enforcement Directorate (ED) secured the extradition of his business partner and the syndicate's other alleged mastermind, Sourabh Chandrakar, from Oman.

Indian agencies have learnt about Uppal's capture through unofficial channels - no official communication shared by the UAE with India yet. Officials said they are trying to gather more information through proper channels and accele...