Cricket-Bangalore's Kumble spins out IPL champions Royals

* Bangalore crush champions Rajasthan

* Mumbai beat last year's runners-up Chennai

* Matches played amid unprecedented security

CAPE TOWN, April 18 (Reuters) - Indian leg spinner Anil Kumble took five for five as Bangalore Royal Challengers crushed champions Rajasthan Royals by 75 runs on the opening day of the Indian Premier League (IPL) at Newlands on Saturday.

Last year's runners up, Chennai Superkings, fared little better, losing by 19 runs to Mumbai Indians, led by India batsman Sachin Tendulkar (59 not out) in the day's first game.

The second edition of the IPL was moved out of India due to security concerns and logical issues surrounding the general elections currently being held in that country.

The two matches were conducted amid unprecedented security exceeding that for the 2003 cricket World Cup in South Africa although there were no serious problems.

As a result, play began in a near empty stadium because it was so difficult and took so long to get in.