Later, serious academic study of orthorexia began to occur. Organizations like the International Federation of Eating Disorder Dietitians (IFEDD ) and the National Eating Disorders Association (NEDA) began to discuss the concept at meetings and in their published literature. Thom R. Dunn of the University of Northern California published a formal article on a case of orthorexia, and proposed diagnostic criteria. [Note: Dr. Dunn and I will be soon be publishing revised criteria that we expect to be definitive.] The authors of the DSM, the American Psychiatric Association’s classification and diagnostic tool, were even quoted as considering it for inclusion.
Modi rose within the party and was named a member of the BJP's National Election Committee in 1990, helping organise L. K. Advani 's 1990 Ram Rath Yatra in 1990 and Murli Manohar Joshi 's 1991–92 Ekta Yatra (Journey for Unity).    However, he took a brief break from politics in 1992, instead establishing a school in Ahmedabad; friction with Shankersingh Vaghela , a BJP MP from Gujarat at the time, also played a part in this decision.  Modi returned to electoral politics in 1994, partly at the insistence of Advani, and as party secretary, Modi's electoral strategy was considered central to the BJP victory in the 1995 state assembly elections.     In November of that year Modi was elected BJP national secretary and transferred to New Delhi, where he assumed responsibility for party activities in Haryana and Himachal Pradesh .   The following year, Shankersinh Vaghela , a prominent BJP leader from Gujarat, defected to the Indian National Congress (Congress, INC) after losing his parliamentary seat in the Lok Sabha elections.  Modi, on the selection committee for the 1998 Assembly elections in Gujarat, favoured supporters of BJP leader Keshubhai Patel over those supporting Vaghela to end factional division in the party. His strategy was credited as key to the BJP winning an overall majority in the 1998 elections,   and Modi was promoted to BJP general secretary (organisation) in May of that year.