Taxation of surrender value of "unit linked pension funds"

Mr. A has invested a sum of Rs. 12.00 lakhs in Bajaj Allianz Insurance Co. Ltd. in a pension fund scheme. The sum insured is zero. Though the investment qualifies u/s 80CCC he has not claimed the deduction under Chapter VIA. Instead of waiting till maturity, he has surrendered the policy within seven years and received a sum of Rs.27.00 lakhs

1. Whether he is liable for taxation on full surrender value or whether he is liable for the difference between maturity proceeds less investment amount. If it is taxable, under which head this amount is taxable?
2. The encashment of units at the time of surrender is whether taxable under the head capital gains or income from other sources
3. If it is taxable under the head capital gains,  since the policy is held for more than three years and premium paid period is also for a period of more than three years, whether he can claim benefit of indexation?

PFA a copy of brouchure published by Unit Trust of India for their Pension Fund Scheme where it's clearly mentioned that Taxation Benefit of LTCG @ 20% can be claimed.