Bharat Heavy Electricals Ltd. on Wednesday said it has entered into a strategic partnership with Italy-based Nuovo Pignone International s.r.l. to pursue compressor revamp opportunities in India’s fertiliser sector.Under the memorandum of understanding, BHEL will be the main bidder for identified compressor train revamp projects, while Nuovo Pignone International will act as the nominated vendor to BHEL, the company said in an exchange filing.