Ambala, Oct 15 (UNI) Haryana Energy, Transport and Labour Minister Anil Vij on Thursday questioned the political motives behind the opposition's joint protest against the Supreme Court, alleging that certain forces could be working to destabilise the country. Reacting to the participation of several opposition parties in a demonstration called by CJP on October 10, Vij questioned how the Congress, Samajwadi Party, Trinamool Congress and Left parties had come together under the banner of an organisation who has no established political credentials. "Who is bringing all these parties together? Who is the force behind them? The people of this country…