Why National Rural Health Mission (NRHM) has been concentrating on nine states only?

Why National Rural Health Mission (NRHM) has been concentrating on nine states only? The following table may be seen to have the answer. Share of Eight EAG and Assam States
	Population	Births	Deaths	Infant Deaths	Maternal Deaths
All India	1210193	26745275	8713393	1257028	56700
EAG and Assam States	586345	15637675	4499958	877998	48702
Share of EAG and Assam States	48.5	58.5	51.6	69.8	85.9
Population is in thousand
EAG and Assam States:	Assam, Bihar, Jharkhand, Madhya Pradesh, Chhattisgarh, Rajasthan, Odisha,
	Uttar Pradesh and Uttarakhand
Source:
For population:	Census-2011
Other indicators:	SRS-2010

These comprise of little less than half of the India’s population.  But the burden of maternal deaths is about 86% and the burden of infant deaths is also about 70%.  Number of births in these states is also significant and hence Total Fertility is high for these states. These are also part of the global bigger problems.  The government’s flag ship scheme (NRHM) is trying to make dent on these problems of India and thus in turn is trying to help the world too.