Are nuclear gandu.. talk about conventional war here.. Pakistan has limited means to sustainably target most of India's population centers.. But, most of Pakistan's population centers like Lahore, Islamabad, Rawalpindi, Faisalabad, Gujranwala are within Indian rocket artillery range... We can kill you Pakis en masse, and burn down your population centers with cheap artillery.. You might fire a few conventional missiles at Delhi or Mumbai.. but there only a few that you can afford..
As to nuclear winter, there will be none.. with a few KT nukes exploding.. A few million tons of ash won't produce a nuclear winter, when 500 million tons of ash from Mount St. Helena volcano could not reduce the world's temperature more than 0.1 degrees.. Don't go by the analysis from some western pansies with an agenda... Also, any imminent launch by Pakistan, will trigger Indian counter force nuclear strikes.. so atmost only a few Paki nukes will get through, while India will take care, if the situation ever escalates to nuclear exchange, that there will be no Pakistan left, and the institution of Pakistan Army is annihilated..