Punters, mostly from the trading class, and bookies linked to underworld syndicates are known to have wider network in Delhi's adjoining towns of Faridabad, Ghaziabad, Noida and Gurugram.
Delhi Police have put their electronic surveillance in top gear.
“We are taking all measures to monitor the satta operators in the wake of the crucial India-New Zealand semi-final match on Tuesday,” Deputy Commissioner of Police Madhur Verma told IANS.
“We are keeping a tab on five-star hotels and guest houses, particularly in Karol Bagh and Old Delhi area that are hired by big-time punters. These operators have strong networks, which are often difficult to crack, but we are on the job.
“On previous occasions, the police arrested top bookies from north Delhi, who had sophisticated internet software of betting linked with mobile phones.”
Police sources said odds were placed on New Zealand as India seem the favourites in Tuesday's tie. The bids are not only placed on who wins, but also over-to-over and ball-to-ball.
Individual bids are placed on who will take maximum wickets or who will hit the most sixes. The betting starts right at the toss.
The punters in the capital's satta market -- in Khari Baoli, Karol Bagh, Old Delhi and South Delhi's guest houses and big hotels -- are siding with Team India. But they have not handed them a clean sweep, like in the 2011 World Cup as New Zealand is also a strong competitor this time.
"Like every year during IPL matches, in this World Cup, most college-going youth, businessmen, hoteliers, cricket lovers, traders, corporate women and hawala operators are betting with us. Over 60 per cent bidders are in favour of India's victory. That means thumbs-up for skipper Virat Kohli and his team," a punter told IANS.
An interesting bet is on who will take more than three wickets from both sides -- whether it would be spinners or pace bowlers. Also, will it be India's Jaspirt Bumrah and Yuzvendra Chahal or New Zealand's Trent Boult or Lockie Ferguson?
The base betting rate of Indian players, for example, in case of Bumrah, it is Rs 20, while for Boult, it is Rs 7, said a source.
The other bets are on star batsmen -- Indian skipper Virat Kohli, his deputy Rohit Sharma, New Zealand captain Kane Williamson and Martin Guptill -- whether they would score half-century or century.