New Delhi, Feb. 2 -- The government boosted a scheme to encourage people to install solar panels on their rooftops, showed details of the interim budget announced by Union finance minister Nirmala Sitharaman, who also said the Centre will offer viability gap funding for certain wind energy projects, introduce mandatory blending of compressed biogas in natural gas products and strengthen the electric vehicle ecosystem in steps to towards India's commitments to reach net zero carbon emissions by 2070....