Karnataka election 2018: Gujarat Dalit leader, Congress ally and newly-elected member of Legislative Assembly of the state, Jignesh Mevani has upped the ante against the BJP in Karnataka. On Monday, Mevani visited Bengaluru, urging all\u00a0non-BJP opposition parties to unite to defeat the saffron party in the upcoming Karnataka election 2018. "In April, I'll be in Karnataka for two weeks. I will tell 20 per cent Dalits in the state that not even their 20 votes should go to them (BJP). An alliance of all mainstream political parties and concrete people\u2019s alliance should come together to defeat \u2018chaddidharis\u2019 in the state," Mevani was quoted as saying by ANI. "Chaddidhari" is an innuendo often thrown by the political opponents at the RSS - the ideological parents of the BJP. Mevani even asked the\u00a0non-BJP parties to shun ideological differences to halt the electoral march of Narendra Modi and Amit Shah-led saffron party, which is fancying its chances in the upcoming Karnataka election 2018. A win in Karnataka for the BJP would further demoralise\u00a0the Congress ahead of the 2019 General Elections. At an event in Bengaluru to mark the birth anniversary of slain journalist-activist Gauri Lankesh, who was killed last year by yet unidentified assailants, Mevani appealed to non-BJP parties: "We cannot be stuck in our ideological purity". People and politicians should make "ideological compromises" to defeat the BJP. Taking a tips or two from Prakash Raj for acting. He told me I should take tips instead from Saheb - the nat-samrat of the nation. pic.twitter.com\/uhENzaoqRf \u2014 Jignesh Mevani (@jigneshmevani80) January 29, 2018 Meanwhile, at the commemoration of the 56th birthday of Gauri Lankesh, differences cropped up among her siblings over the SIT probe to nab the killers and the motive behind it. Gauri\u2019s sister Kavitha expressed confidence in the Special Investigation Team (SIT) probing the case, their brother Indrajit said he would move the High Court for a CBI probe. "Today is Gauri's birthday; it has been almost five months now.the investigation is like stagnant water. I personally feel that politically it (investigation) is going as one-sided," PTI quoted Indrajit as saying. "Today I have taken a decision.I have also spoken to our advocate. Very soon I will approach the High Court requesting for a CBI probe because for five months SIT has done its job. But I somewhere feel that due to political pressure they are investigating in one particular angle," he added. However, Kavitha said, "There has been good progress.They have evidence but are taking time so that they have solid evidence to avoid any gaps. I trust them." She also slammed Indrajit, saying, "I don't know what he is saying..without speaking to (SIT) officers or knowing things, it is wrong to comment." The commemoration event was attended by Gujarat MLA Jignesh Mevani, actor Prakash Raj, JNU students' leaders Kanhaiya Kumar, Shehla Rashid and Umar Khalid and others.