From this interview:
Q: How much nuclear warhead is enough for a country like India? Are there any criteria to determine this?’
A: There is no point talking about numerical superiority, the important point is whether we have been able to create a credible deterrence and the answer is yes. We must ensure that our posture, our policies deter the adversaries from using the weapons of mass destruction. I don’t think any one of us wants to get into this arms race.