Instamart delivery guy asked for onion (Bangalore)

So this is what happened. In the evening having discussed with my wife what all grocery we need, I order them. The delivery guy came to the door on expected time. After me greeting him with thanks, he said : sir, ek pyaaj mil sakta hai kya ? Me : kyu ? He : aise hi, khaane k liye. Me : okay…..after getting a pyaaj, I asked … koi tantra mantra to nahi karoge na bhaiya ?? He : nahi sir(with innocent smile) … … After I he left taking the onion, me and my wife were discussing if he genuinely needed to eat it or going to do tantra mantra😂….my wife said may be onion is so expensive here he might be asking for onion from every where he delivers so he have enough to make food using it. Did any one else has experienced this? Could anyone tell why he asked for this ?