Riddle Of Day 6 12/06/2021

Hello everyone! hope you all are safe!

Here is the riddle of today's

Riddle: A man used to carry sacks full of sand near the Indian border on his bicycle. This was his daily routine. Everyday POLICE used to just check him before allowing him to move. As usual Police could see nothing except sand. But still they had a strong belief that he was a smuggler, smuggling something everyday. Days passed by, while one day Sherlock Holmes was on his visit to India. They requested him to look into the suspected smugglers case once. He agreed and a day came where they took him to the spot while suspected smuggler was traveling. Holmes checked the sacks once and saw the man from a far distance and finally put on his cigar and claimed that he was a smuggler. Now, the police checked everyday but still couldn't find that he was smuggler but how did Sherlock find it(don't answer this)?

My final question is what was the smuggler smuggling?   

don't answer how he found it but answer what was he smuggling

Gold nuggets

no sorry

I won! give me 10 cheers!

Kk

Either Some chemicals were in the sand or it has something to do with the bicycle

specify

Something with the bicycle is wrong basically. 

Either fuel or parts of the cycle

i dont know if you are sure then i will consider

Fine. It has  to be fuel

cycle doesn't run on fuel and it is a wrong answer

🤦‍♂🤦‍♂

somewhere near but specify so that i can consider

I mean I get the idea of the riddle but finding the exact answer is hard. Idea is to distract with a decoy(sand) 

yeah true

Inside his clothes? 

the answer is simple. the whole thing i wrote was to distract your minds guys

thinking is good but if it was there, police could have caught him long before so sorry wrong answer