Whenever one is buying a term policy, the best option in most of the situations is a Regular premium Policies. I am strictly against Single Premium policies...logic being...you pay say 51K in the first year & get a life cover of 15 Lakhs...if something were to happen to you in the 2nd or 3rd yr...no doubt u will get back 15 Lakhs..but you have paid 51K for it..if you had gone for a regular premium policy..you would have paid only 7-8K max.
2ndly..Life Covers in Unit Linked Plans tend to be a bit cheaper than the Pure Term Insurance (Regular premium). You could also have a look at it.
3rdly..View on the Return of Premium ..again a strict no-no. One would rather break up this product into Pure Term & SIP into a Diversified Mutual Fund.