It is almost four years now since two school boy cricketers Shahbaaz Tumbi ( 334 not out ) .
Manoj Kumar ( 320 not out ) set a world - record with school boy cricketers ' 721 - run opening partnership .
It is almost four years now since two school boy cricketers Shahbaaz Tumbi ( 334 not out ) and Manoj Kumar ( 320 not out ) set a world - record with their 721 - run opening partnership .