It all started with a probe into a case related to organised crime when an alert official of Delhi Police's Special Cell heard an unusual conversation about giving signals at the cricket ground.
This generated some interest in the official who, after informing his seniors, began finding as to who has to give signals and why.
After monitoring a phone call, the investigation had virtually turned pan-India with some of the bookies based in Gujarat and Mumbai.
After stumbling upon the "accidental" call, the Delhi Police's Special Cell, which recently had Madan Mohan Oberoi as its Joint Commissioner after completing his tenure with CBI, began monitoring all the phones linked to one call.
And as time passed by, the Delhi Police sensed it was a sensational case. With anti-corruption unit in slumber, money wasted
Investigators got tip off in the middle of March about bookies' plan to indulge in spot fixing in this T20 league season and kept them under surveillance during which they intercepted calls from a Dubai number.
Police said the conversations between the bookies led them to the three Rajasthan Royal players -- Sreesanth, Ajit Chandila and Ankit Chavan.
A senior police official said they had intercepted a call from a Dubai number but they cannot say it for sure whether the person was in Dubai when the call made. "He can use a Dubai number and call from anywhere," he said.
Delhi Police Commissioner Neeraj Kumar was personally monitoring the case almost on a daily basis and had coordinated with police forces of other states as well so that there is no faux pas.
And finally after recording over 100s of hours of conversations, Delhi Police decided to crack the whip by arresting 14 people including three players of Rajasthan Royals -- S Sreesanth, Ajit Chandila and Ankeet Chavan. A discarded player is prone to fixing: KK Paul
Sreeshant was arrested from Carter Road in Mumbai in the early hours of today while Chandila from the Intercontinental Hotel. Chavan was picked up from Hotel Trident.
"The players were staying in Hotel Intercontinental and Trident. Interestingly, two bookies Amit Kumar and Manan were arrested from Room 336 of the Intercontinental Hotel. It means that the bookies were staying in the same hotel where the players were staying," the official said.
Alleged bookies Chandresh Patel of Andheri East, Amit Kumar of Ahmedabad, Manan of Ahmedabad and Jiju Janardhan of Kannur were arrested from Mumbai.
Bookies Deepak Kumar of Patiala and Rakesh of Rohini were arrested in Delhi. The names of a few others arrested are withheld in the interest of further investigations, police said. Jupiter, Tikku Delhi most wanted
"In all, 14-persons have been arrested who include four who were working in the bookie exchange of one of the bookies. Preliminary searches were carried out in Mumbai, Delhi and Gurgaon.
"Among the items found during the search include 51 mobile phones, five laptops, one recording machine etc. which have been seized. More arrests of bookies are likely," a police statement said.
Meanwhile, the case for which the monitoring was being done is still under investigation.