Air India — Complaint about wheelchair employees at New Delhi airport

My mother's travelled to Bhubaneswar from SFO, USA via Delhi in AirIndia(AI 174). She's reached at Delhi is on Nov 14th at 3.30PM. We requested for wheel chair and its approved by AI also. couple of wheel chair people came and demanded Rs 10, 000/- or $100/-. Many senior citizens refused to pay. So all the wheelchair employees left the senior citizens alone. My mother some how requested some one and he took the money and left in mid of the airport. This is unexpected and no control at the national airport. Is is business? no control over them? They are damaging complete value and not understanding the importance. This is not fair. Please take action against them and save India image.