Mumbai: Shares of defence companies were among the top gainers on Tuesday after the Defence Acquisition Council (DAC) gave in-principle approval to military acquisition proposals worth about ?1.10 lakh crore. Around 98% of the purchases are expected to be sourced from Indian companies, boosting investor sentiment towards defence stocks.The development triggered buying across defence stocks. Mishra Dhatu Nigam (MIDHANI) surged 12.5%, Data Patterns rose 7.6%, and Hindustan Aeronautics (HAL) gained 4%. Paras Defence and Space Technologies rose over 1%. The Nifty India Defence index climbed as much as 3% to 10,012.95 during the day, crossing the 10,000 mark for the…