The healthcare scheme is likely to be launched on either August 15 or October 2, according to reports.
Economic Affairs Secretary Subhash Chandra Garg said a lot of specificity will be brought into the scheme by the first quarter of the next fiscal.
"Based on the experience of Rashtriya Swasthya Bima Yojana (RSBY) and some number crunching by the Health Ministry -- also a belief that this will be a shared scheme between Centre and state -- it places the next year's requirement at around Rs 4,000 crore," Mr Garg told IANS.
He clarified while the total outlay of the scheme would be around Rs 8,000 crore to Rs 10,000 crore, the centre's share would be around Rs 4,000 crore.
The Secretary said the scheme would cover the poor and near-poor families which would be identified based either on the Socio-Economic Survey or the poverty line.
"This is the coverage that the government provides," Mr Garg said.
He added that "specific illnesses" will be covered for 10 crore families and they would be entitled to hospital expenses up to Rs 5 lakh.
Referring to those specific illnesses, he said "these are the kind of emergencies which put many of these households in a state of poverty".
Terming it as the world's largest government funded healthcare programme, Finance Minister Arun Jaitley on Thursday announced the National Health Protection Scheme under which Rs 5 lakh cover will be provided a year to 10 crore poor and vulnerable families in the country.