The Rs 350 crore IPO of Shankara Building Products got fully subscribed on Day 2 of bidding process. According to NSE data, the issue had received bids for 53,02,400 shares by 12 pm on Thursday, which was bit higher than the total issue size of 52,94,467 equity shares. Retail quota was fully subscribed over 2 times. Quota limit for non-institutional investors was subscribed 33%.