Defence Ministry clears Rs 20,000 crore proposal to buy 335 more K-9 Vajra self-propelled howitzers with 70% indigenous content and winter kits for high-altitude operations in Ladakh. New Delhi: In a major boost to the Indian Army’s firepower along the borders with Pakistan and China, the Defence Ministry on Monday cleared a Rs 20,000 crore proposal to buy 335 more K-9 Vajra self-propelled howitzers, which will have over 70 per cent indigenous.