The Centre on Saturday finally slashed excise duty on petrol and diesel by Rs 8 and Rs 6 per litre respectively. This will reduce the price of petrol by Rs 9.5 per litre and of diesel by Rs 7 per litre. br br However, the political slugfest over fuel prices continues. Watch the debate between BJP's Gopal Krishna Agarwal and Congress leader Aishwarya Mahadev.