A businessman of Indian origin was sentenced to 35 months in a US federal prison on Monday for allegedly exporting ballistic missile technology to India in a case that calls into question talk of a strategic relationship between the two countries and the salience of American nonproliferation laws. At a time when the two countries are collaborating on sophisticated space programmes, including India's Chandrayaan launch to the moon, Parthasarathy Sudarshan, 47, was jailed for illegally exporting what his defence lawyers said were lowcost, work-a-day technology components, some of which cost as little as $1 apiece and could be sourced from local electronics stores. But prosecutors alleged in court documents that Sudarshan and his company, Cirrus Electronics, made illegal shipments of components which could be used to improve India's ballistic missiles. The shipments