The BJP South Bengaluru unit, led by MLA C K Ramamurthy, will undertake a Dharmasthala yatra today under the theme “Dharmada Ulivige Dharma Yuddha.” Flagged off by MP Tejasvi Surya and MLA Ravi Subramanya, the 400-vehicle convoy will culminate at Lord Manjunath Swamy temple, reaffirming BJP’s support amid controversy and an SIT probe.