Paris St Germain sacked midfielder Vikash Dhorasoo after he publicly challenged coach Guy Lacombe.
The biggest diamond to be found in 13 years, the "Lesotho Promise", was sold at auction for more than $12 million.
The new device will help blind people find their way out using auditory signals via bone-conduction headphones.
CPI-M has asked the Centre to reconsider the move to divest 10 per cent stake in Nalco and Neyveli Lignite Corporation (NLC).
