But for him, the only alternative to burning crop residues is to join the queue to hire machines to clear his field, which would cost him about $100 for his four-acre farm. More than 85% of Indian farmers are categorised as small, meaning that, like Sharma, they own about four acres or fewer. Stubble burning in Punjab and Haryana has typically accounted for 30% to 40% of Delhi's October-November pollution, according to government air-quality monitoring agency SAFAR. POLITICAL WILL LACKINGAjay Singh Rana, a Haryana farm official, said the number of farms burning stubble in Karnal had dropped to 96 so far this year from 270 last year. ($1 = 83.1750 Indian rupees)Reporting by Manoj Kumar, additional reporting by Anushree Fadnavis; editing by Barbara LewisOur Standards: The Thomson Reuters Trust Principles.

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Persons: Anushree, Aashish Sharma, Sharma, SAFAR, Dharamvir Singh, Ajay Singh Rana, Sharma's, Mukhi Ram Sharma, Bajinder Pal Punia, Manoj Kumar, Barbara Lewis Organizations: REUTERS, Central Pollution Control, Reuters, Thomson Locations: Karnal district, Haryana, India, New Delhi, Sharma's, Karnal, Delhi, Uttar Pradesh, Punjab, Samalkha