Truckers went on a day-long strike in Himachal Pradesh on Monday over various demands, including a revision of the GST rates and an end to daily revision of diesel prices."We are observing the day-long strike on the call for a nationwide strike," Truckers' association spokesperson Ram Kishan Sharma told IANS.He added that over 1,200 truckers were on strike, refusing to lift for transportation cement and clinker of Ambuja Cement from its two units at Darlaghat in Solan district, around 45 km from here.An official of Ambuja Cement said the strike has affected normal production at the two units.Likewise, the production of Jaypee Himachal Cement, a subsidiary of diversified group Jaiprakash Associates, located in Solan district, was also hit.