A 50-year-old man, reported to be involved in illegal sand mining, was allegedly shot dead by members of his rival group in Greater Noida on Wednesday. Police said the dead, identified as Jan Mohammad, was on his way to the city when some unidentified criminals gunned him down. The victim was admitted in ICU immediately but later he succumbed to his injuries. The family of Mohammad suspect involvement of mining mafia in his murder and has lodged a complaint against the unidentified assailants.