yes there is a confusion over our laws. for example, police are not following the rules and are not strict enough to stop corruptions, robbery cases and others. where as in IAS, they are not moving strict but giving permission to all dig for sand and minerals, co-operating the thieves of ores etc. come to SCERT board of AP, they are not  conforming the model paper pattern of 10th board exam. these arise due to confusion of laws.
Indian Constitution has provided for single citizenship which becomes useful for maintaining the security of e nation. some countries do provide for dual citizenship. But ,if India does so then any outsider can enter the borders of India and can raise a threat to the country by carrying terrorist activities. This will put the life of the citizens at risk. Hence, single citizenship is preferred to maintain safety in the current situation.