As per the official website, the College of Nursing at SGPGIMS Lucknow offers a 4 year BSc. in Nursing, the admission to which is based on an All India Entrance Test conducted by the college.
Thus, there is no provision for direct admission into BSc. Nursing at the university.
You can check other details on the BSc. Nursing program at SGPGIMS such as course details, etc.
Both SGPI Lucknow and PGI Chandigarh are esteemed medical institutes of the country. Here are some of the facts I thought were worth mentioning.
You should also consider the distance of these institutes from your residence. As it is one of the important things while choosing a college. Decide which one meets all your requirements and then opt accordingly.