Agreement is for 40 yrs. Pokhran P-1 and P-2 were done with a gap of 25 yrs Only due Moles.
If You want Technology Advancement and Thus Sophistication and Cost-Cuttings, Tests are a Must. Like in any Field, As Tech progresses, There will be an Avalanche of Ideas. Which can be confirmed only thru TESTING. So, The idea that we won't need tests in the future is Foolish. It only suits to be a Statement in the International Political Arena. Signing an Agreement and Binding outselves would be Foolish.
Power Cuts TRUTH:
All Experts are Clearly Saying that There are Opportunities for Abundant Power Supply But Govt is Purposefully Keeping the Facilities Idle Only to Create an Atmosphere for the N-Deal.