there is only one real pic of arihant is present on internet. and no pic of arighat is available. this program is very secretive program. satellite images show that india navy already have 3 operational SSBN and 4th one is almost ready. currently Navy is working on three S5 class SSBN which will be twice the weight of S1.
Nuclear powered submarine isn't a big deal ,don't make indian people fool about Nuclear powered submarine with Nuclear armed ,india needs Nuclear armed submarine